; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
; RUN: | FileCheck -check-prefix=RV32I %s
; RUN: llc -mtriple=riscv32 -verify-machineinstrs -code-model=medium < %s \
; RUN: | FileCheck -check-prefix=RV32I-MEDIUM %s
; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \
; RUN: | FileCheck -check-prefix=RV64I %s
; RUN: llc -mtriple=riscv64 -verify-machineinstrs -code-model=medium < %s \
; RUN: | FileCheck -check-prefix=RV64I-MEDIUM %s
; We can often fold an ADDI into the offset of load/store instructions:
; (load (addi base, off1), off2) -> (load base, off1+off2)
; (store val, (addi base, off1), off2) -> (store val, base, off1+off2)
; This is possible when the off1+off2 continues to fit the 12-bit immediate.
; Check if we do the fold under various conditions. If off1 is (the low part of)
; an address the fold's safety depends on the variable's alignment.
@g_0 = dso_local global i64 0
@g_1 = dso_local global i64 0, align 1
@g_2 = dso_local global i64 0, align 2
@g_4 = dso_local global i64 0, align 4
@g_8 = dso_local global i64 0, align 8
@g_16 = dso_local global i64 0, align 16
define dso_local i64 @load_g_0() nounwind {
; RV32I-LABEL: load_g_0:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: lui a1, %hi(g_0)
; RV32I-NEXT: lw a0, %lo(g_0)(a1)
; RV32I-NEXT: lw a1, %lo(g_0+4)(a1)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: load_g_0:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: .Lpcrel_hi0:
; RV32I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g_0)
; RV32I-MEDIUM-NEXT: addi a1, a0, %pcrel_lo(.Lpcrel_hi0)
; RV32I-MEDIUM-NEXT: lw a0, 0(a1)
; RV32I-MEDIUM-NEXT: lw a1, 4(a1)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: load_g_0:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: lui a0, %hi(g_0)
; RV64I-NEXT: ld a0, %lo(g_0)(a0)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: load_g_0:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: .Lpcrel_hi0:
; RV64I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g_0)
; RV64I-MEDIUM-NEXT: ld a0, %pcrel_lo(.Lpcrel_hi0)(a0)
; RV64I-MEDIUM-NEXT: ret
entry:
%0 = load i64, ptr @g_0
ret i64 %0
}
define dso_local i64 @load_g_1() nounwind {
; RV32I-LABEL: load_g_1:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: lui a1, %hi(g_1)
; RV32I-NEXT: lw a0, %lo(g_1)(a1)
; RV32I-NEXT: addi a1, a1, %lo(g_1)
; RV32I-NEXT: lw a1, 4(a1)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: load_g_1:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: .Lpcrel_hi1:
; RV32I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g_1)
; RV32I-MEDIUM-NEXT: addi a1, a0, %pcrel_lo(.Lpcrel_hi1)
; RV32I-MEDIUM-NEXT: lw a0, 0(a1)
; RV32I-MEDIUM-NEXT: lw a1, 4(a1)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: load_g_1:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: lui a0, %hi(g_1)
; RV64I-NEXT: ld a0, %lo(g_1)(a0)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: load_g_1:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: .Lpcrel_hi1:
; RV64I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g_1)
; RV64I-MEDIUM-NEXT: ld a0, %pcrel_lo(.Lpcrel_hi1)(a0)
; RV64I-MEDIUM-NEXT: ret
entry:
%0 = load i64, ptr @g_1
ret i64 %0
}
define dso_local i64 @load_g_2() nounwind {
; RV32I-LABEL: load_g_2:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: lui a1, %hi(g_2)
; RV32I-NEXT: lw a0, %lo(g_2)(a1)
; RV32I-NEXT: addi a1, a1, %lo(g_2)
; RV32I-NEXT: lw a1, 4(a1)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: load_g_2:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: .Lpcrel_hi2:
; RV32I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g_2)
; RV32I-MEDIUM-NEXT: addi a1, a0, %pcrel_lo(.Lpcrel_hi2)
; RV32I-MEDIUM-NEXT: lw a0, 0(a1)
; RV32I-MEDIUM-NEXT: lw a1, 4(a1)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: load_g_2:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: lui a0, %hi(g_2)
; RV64I-NEXT: ld a0, %lo(g_2)(a0)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: load_g_2:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: .Lpcrel_hi2:
; RV64I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g_2)
; RV64I-MEDIUM-NEXT: ld a0, %pcrel_lo(.Lpcrel_hi2)(a0)
; RV64I-MEDIUM-NEXT: ret
entry:
%0 = load i64, ptr @g_2
ret i64 %0
}
define dso_local i64 @load_g_4() nounwind {
; RV32I-LABEL: load_g_4:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: lui a1, %hi(g_4)
; RV32I-NEXT: lw a0, %lo(g_4)(a1)
; RV32I-NEXT: addi a1, a1, %lo(g_4)
; RV32I-NEXT: lw a1, 4(a1)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: load_g_4:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: .Lpcrel_hi3:
; RV32I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g_4)
; RV32I-MEDIUM-NEXT: addi a1, a0, %pcrel_lo(.Lpcrel_hi3)
; RV32I-MEDIUM-NEXT: lw a0, 0(a1)
; RV32I-MEDIUM-NEXT: lw a1, 4(a1)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: load_g_4:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: lui a0, %hi(g_4)
; RV64I-NEXT: ld a0, %lo(g_4)(a0)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: load_g_4:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: .Lpcrel_hi3:
; RV64I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g_4)
; RV64I-MEDIUM-NEXT: ld a0, %pcrel_lo(.Lpcrel_hi3)(a0)
; RV64I-MEDIUM-NEXT: ret
entry:
%0 = load i64, ptr @g_4
ret i64 %0
}
define dso_local i64 @load_g_8() nounwind {
; RV32I-LABEL: load_g_8:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: lui a1, %hi(g_8)
; RV32I-NEXT: lw a0, %lo(g_8)(a1)
; RV32I-NEXT: lw a1, %lo(g_8+4)(a1)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: load_g_8:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: .Lpcrel_hi4:
; RV32I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g_8)
; RV32I-MEDIUM-NEXT: addi a1, a0, %pcrel_lo(.Lpcrel_hi4)
; RV32I-MEDIUM-NEXT: lw a0, 0(a1)
; RV32I-MEDIUM-NEXT: lw a1, 4(a1)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: load_g_8:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: lui a0, %hi(g_8)
; RV64I-NEXT: ld a0, %lo(g_8)(a0)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: load_g_8:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: .Lpcrel_hi4:
; RV64I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g_8)
; RV64I-MEDIUM-NEXT: ld a0, %pcrel_lo(.Lpcrel_hi4)(a0)
; RV64I-MEDIUM-NEXT: ret
entry:
%0 = load i64, ptr @g_8
ret i64 %0
}
define dso_local i64 @load_g_16() nounwind {
; RV32I-LABEL: load_g_16:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: lui a1, %hi(g_16)
; RV32I-NEXT: lw a0, %lo(g_16)(a1)
; RV32I-NEXT: lw a1, %lo(g_16+4)(a1)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: load_g_16:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: .Lpcrel_hi5:
; RV32I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g_16)
; RV32I-MEDIUM-NEXT: addi a1, a0, %pcrel_lo(.Lpcrel_hi5)
; RV32I-MEDIUM-NEXT: lw a0, 0(a1)
; RV32I-MEDIUM-NEXT: lw a1, 4(a1)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: load_g_16:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: lui a0, %hi(g_16)
; RV64I-NEXT: ld a0, %lo(g_16)(a0)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: load_g_16:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: .Lpcrel_hi5:
; RV64I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g_16)
; RV64I-MEDIUM-NEXT: ld a0, %pcrel_lo(.Lpcrel_hi5)(a0)
; RV64I-MEDIUM-NEXT: ret
entry:
%0 = load i64, ptr @g_16
ret i64 %0
}
define dso_local void @store_g_4() nounwind {
; RV32I-LABEL: store_g_4:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: lui a0, %hi(g_4)
; RV32I-NEXT: sw zero, %lo(g_4)(a0)
; RV32I-NEXT: addi a0, a0, %lo(g_4)
; RV32I-NEXT: sw zero, 4(a0)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: store_g_4:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: .Lpcrel_hi6:
; RV32I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g_4)
; RV32I-MEDIUM-NEXT: addi a0, a0, %pcrel_lo(.Lpcrel_hi6)
; RV32I-MEDIUM-NEXT: sw zero, 4(a0)
; RV32I-MEDIUM-NEXT: sw zero, 0(a0)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: store_g_4:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: lui a0, %hi(g_4)
; RV64I-NEXT: sd zero, %lo(g_4)(a0)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: store_g_4:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: .Lpcrel_hi6:
; RV64I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g_4)
; RV64I-MEDIUM-NEXT: sd zero, %pcrel_lo(.Lpcrel_hi6)(a0)
; RV64I-MEDIUM-NEXT: ret
entry:
store i64 0, ptr @g_4
ret void
}
define dso_local void @store_g_8() nounwind {
; RV32I-LABEL: store_g_8:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: lui a0, %hi(g_8)
; RV32I-NEXT: sw zero, %lo(g_8+4)(a0)
; RV32I-NEXT: sw zero, %lo(g_8)(a0)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: store_g_8:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: .Lpcrel_hi7:
; RV32I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g_8)
; RV32I-MEDIUM-NEXT: addi a0, a0, %pcrel_lo(.Lpcrel_hi7)
; RV32I-MEDIUM-NEXT: sw zero, 4(a0)
; RV32I-MEDIUM-NEXT: sw zero, 0(a0)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: store_g_8:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: lui a0, %hi(g_8)
; RV64I-NEXT: sd zero, %lo(g_8)(a0)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: store_g_8:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: .Lpcrel_hi7:
; RV64I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g_8)
; RV64I-MEDIUM-NEXT: sd zero, %pcrel_lo(.Lpcrel_hi7)(a0)
; RV64I-MEDIUM-NEXT: ret
entry:
store i64 0, ptr @g_8
ret void
}
; Check if we can fold ADDI into the offset of store instructions,
; when store instructions is the root node in DAG.
@g_4_i32 = global i32 0, align 4
define dso_local void @inc_g_i32() nounwind {
; RV32I-LABEL: inc_g_i32:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: lui a0, %hi(g_4_i32)
; RV32I-NEXT: lw a1, %lo(g_4_i32)(a0)
; RV32I-NEXT: addi a1, a1, 1
; RV32I-NEXT: sw a1, %lo(g_4_i32)(a0)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: inc_g_i32:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: .Lpcrel_hi8:
; RV32I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g_4_i32)
; RV32I-MEDIUM-NEXT: lw a1, %pcrel_lo(.Lpcrel_hi8)(a0)
; RV32I-MEDIUM-NEXT: addi a1, a1, 1
; RV32I-MEDIUM-NEXT: sw a1, %pcrel_lo(.Lpcrel_hi8)(a0)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: inc_g_i32:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: lui a0, %hi(g_4_i32)
; RV64I-NEXT: lw a1, %lo(g_4_i32)(a0)
; RV64I-NEXT: addi a1, a1, 1
; RV64I-NEXT: sw a1, %lo(g_4_i32)(a0)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: inc_g_i32:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: .Lpcrel_hi8:
; RV64I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g_4_i32)
; RV64I-MEDIUM-NEXT: lw a1, %pcrel_lo(.Lpcrel_hi8)(a0)
; RV64I-MEDIUM-NEXT: addi a1, a1, 1
; RV64I-MEDIUM-NEXT: sw a1, %pcrel_lo(.Lpcrel_hi8)(a0)
; RV64I-MEDIUM-NEXT: ret
entry:
%0 = load i32, ptr @g_4_i32
%inc = add i32 %0, 1
store i32 %inc, ptr @g_4_i32
br label %if.end
if.end:
ret void
}
; Check for folds in accesses to elements of an i32 array.
@ga = dso_local local_unnamed_addr global [2 x i32] zeroinitializer, align 4
define dso_local i32 @load_ga() local_unnamed_addr #0 {
; RV32I-LABEL: load_ga:
; RV32I: # %bb.0:
; RV32I-NEXT: lui a0, %hi(ga+4)
; RV32I-NEXT: lw a0, %lo(ga+4)(a0)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: load_ga:
; RV32I-MEDIUM: # %bb.0:
; RV32I-MEDIUM-NEXT: .Lpcrel_hi9:
; RV32I-MEDIUM-NEXT: auipc a0, %pcrel_hi(ga+4)
; RV32I-MEDIUM-NEXT: lw a0, %pcrel_lo(.Lpcrel_hi9)(a0)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: load_ga:
; RV64I: # %bb.0:
; RV64I-NEXT: lui a0, %hi(ga+4)
; RV64I-NEXT: lw a0, %lo(ga+4)(a0)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: load_ga:
; RV64I-MEDIUM: # %bb.0:
; RV64I-MEDIUM-NEXT: .Lpcrel_hi9:
; RV64I-MEDIUM-NEXT: auipc a0, %pcrel_hi(ga+4)
; RV64I-MEDIUM-NEXT: lw a0, %pcrel_lo(.Lpcrel_hi9)(a0)
; RV64I-MEDIUM-NEXT: ret
%1 = load i32, ptr getelementptr inbounds ([2 x i32], ptr @ga, i32 0, i32 1), align 4
ret i32 %1
}
; Check for folds in accesses to the second element of an i64 array.
@ga_8 = dso_local local_unnamed_addr global [2 x i64] zeroinitializer, align 8
@ga_16 = dso_local local_unnamed_addr global [2 x i64] zeroinitializer, align 16
define dso_local i64 @load_ga_8() nounwind {
; RV32I-LABEL: load_ga_8:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: lui a1, %hi(ga_8)
; RV32I-NEXT: addi a1, a1, %lo(ga_8)
; RV32I-NEXT: lw a0, 8(a1)
; RV32I-NEXT: lw a1, 12(a1)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: load_ga_8:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: .Lpcrel_hi10:
; RV32I-MEDIUM-NEXT: auipc a0, %pcrel_hi(ga_8)
; RV32I-MEDIUM-NEXT: addi a1, a0, %pcrel_lo(.Lpcrel_hi10)
; RV32I-MEDIUM-NEXT: lw a0, 8(a1)
; RV32I-MEDIUM-NEXT: lw a1, 12(a1)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: load_ga_8:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: lui a0, %hi(ga_8+8)
; RV64I-NEXT: ld a0, %lo(ga_8+8)(a0)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: load_ga_8:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: .Lpcrel_hi10:
; RV64I-MEDIUM-NEXT: auipc a0, %pcrel_hi(ga_8+8)
; RV64I-MEDIUM-NEXT: ld a0, %pcrel_lo(.Lpcrel_hi10)(a0)
; RV64I-MEDIUM-NEXT: ret
entry:
%0 = load i64, ptr getelementptr inbounds ([2 x i64], ptr @ga_8, i32 0, i32 1)
ret i64 %0
}
define dso_local i64 @load_ga_16() nounwind {
; RV32I-LABEL: load_ga_16:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: lui a1, %hi(ga_16)
; RV32I-NEXT: lw a0, %lo(ga_16+8)(a1)
; RV32I-NEXT: lw a1, %lo(ga_16+12)(a1)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: load_ga_16:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: .Lpcrel_hi11:
; RV32I-MEDIUM-NEXT: auipc a0, %pcrel_hi(ga_16)
; RV32I-MEDIUM-NEXT: addi a1, a0, %pcrel_lo(.Lpcrel_hi11)
; RV32I-MEDIUM-NEXT: lw a0, 8(a1)
; RV32I-MEDIUM-NEXT: lw a1, 12(a1)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: load_ga_16:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: lui a0, %hi(ga_16)
; RV64I-NEXT: ld a0, %lo(ga_16+8)(a0)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: load_ga_16:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: .Lpcrel_hi11:
; RV64I-MEDIUM-NEXT: auipc a0, %pcrel_hi(ga_16+8)
; RV64I-MEDIUM-NEXT: ld a0, %pcrel_lo(.Lpcrel_hi11)(a0)
; RV64I-MEDIUM-NEXT: ret
entry:
%0 = load i64, ptr getelementptr inbounds ([2 x i64], ptr @ga_16, i32 0, i32 1)
ret i64 %0
}
; Check for folds in accesses to block address.
define dso_local ptr @load_ba_1() nounwind {
; RV32I-LABEL: load_ba_1:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: .Ltmp0: # Block address taken
; RV32I-NEXT: # %bb.1: # %label
; RV32I-NEXT: lui a0, %hi(.Ltmp0)
; RV32I-NEXT: lw a0, %lo(.Ltmp0)(a0)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: load_ba_1:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: .Ltmp0: # Block address taken
; RV32I-MEDIUM-NEXT: # %bb.1: # %label
; RV32I-MEDIUM-NEXT: .Lpcrel_hi12:
; RV32I-MEDIUM-NEXT: auipc a0, %pcrel_hi(.Ltmp0)
; RV32I-MEDIUM-NEXT: lw a0, %pcrel_lo(.Lpcrel_hi12)(a0)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: load_ba_1:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: .Ltmp0: # Block address taken
; RV64I-NEXT: # %bb.1: # %label
; RV64I-NEXT: lui a0, %hi(.Ltmp0)
; RV64I-NEXT: ld a0, %lo(.Ltmp0)(a0)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: load_ba_1:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: .Ltmp0: # Block address taken
; RV64I-MEDIUM-NEXT: # %bb.1: # %label
; RV64I-MEDIUM-NEXT: .Lpcrel_hi12:
; RV64I-MEDIUM-NEXT: auipc a0, %pcrel_hi(.Ltmp0)
; RV64I-MEDIUM-NEXT: ld a0, %pcrel_lo(.Lpcrel_hi12)(a0)
; RV64I-MEDIUM-NEXT: ret
entry:
br label %label
label:
%0 = load ptr, ptr blockaddress(@load_ba_1, %label)
ret ptr %0
}
define dso_local ptr @load_ba_2() nounwind {
; RV32I-LABEL: load_ba_2:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: .Ltmp1: # Block address taken
; RV32I-NEXT: # %bb.1: # %label
; RV32I-NEXT: lui a0, %hi(.Ltmp1+8)
; RV32I-NEXT: lw a0, %lo(.Ltmp1+8)(a0)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: load_ba_2:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: .Ltmp1: # Block address taken
; RV32I-MEDIUM-NEXT: # %bb.1: # %label
; RV32I-MEDIUM-NEXT: .Lpcrel_hi13:
; RV32I-MEDIUM-NEXT: auipc a0, %pcrel_hi(.Ltmp1+8)
; RV32I-MEDIUM-NEXT: lw a0, %pcrel_lo(.Lpcrel_hi13)(a0)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: load_ba_2:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: .Ltmp1: # Block address taken
; RV64I-NEXT: # %bb.1: # %label
; RV64I-NEXT: lui a0, %hi(.Ltmp1+8)
; RV64I-NEXT: ld a0, %lo(.Ltmp1+8)(a0)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: load_ba_2:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: .Ltmp1: # Block address taken
; RV64I-MEDIUM-NEXT: # %bb.1: # %label
; RV64I-MEDIUM-NEXT: .Lpcrel_hi13:
; RV64I-MEDIUM-NEXT: auipc a0, %pcrel_hi(.Ltmp1+8)
; RV64I-MEDIUM-NEXT: ld a0, %pcrel_lo(.Lpcrel_hi13)(a0)
; RV64I-MEDIUM-NEXT: ret
entry:
br label %label
label:
%0 = load ptr, ptr getelementptr inbounds (i8, ptr blockaddress(@load_ba_2, %label), i32 8)
ret ptr %0
}
; Check for folds in accesses to thread-local variables.
@tl_4 = dso_local thread_local global i64 0, align 4
@tl_8 = dso_local thread_local global i64 0, align 8
define dso_local i64 @load_tl_4() nounwind {
; RV32I-LABEL: load_tl_4:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: lui a0, %tprel_hi(tl_4)
; RV32I-NEXT: add a1, a0, tp, %tprel_add(tl_4)
; RV32I-NEXT: lw a0, %tprel_lo(tl_4)(a1)
; RV32I-NEXT: addi a1, a1, %tprel_lo(tl_4)
; RV32I-NEXT: lw a1, 4(a1)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: load_tl_4:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: lui a0, %tprel_hi(tl_4)
; RV32I-MEDIUM-NEXT: add a1, a0, tp, %tprel_add(tl_4)
; RV32I-MEDIUM-NEXT: lw a0, %tprel_lo(tl_4)(a1)
; RV32I-MEDIUM-NEXT: addi a1, a1, %tprel_lo(tl_4)
; RV32I-MEDIUM-NEXT: lw a1, 4(a1)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: load_tl_4:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: lui a0, %tprel_hi(tl_4)
; RV64I-NEXT: add a0, a0, tp, %tprel_add(tl_4)
; RV64I-NEXT: ld a0, %tprel_lo(tl_4)(a0)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: load_tl_4:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: lui a0, %tprel_hi(tl_4)
; RV64I-MEDIUM-NEXT: add a0, a0, tp, %tprel_add(tl_4)
; RV64I-MEDIUM-NEXT: ld a0, %tprel_lo(tl_4)(a0)
; RV64I-MEDIUM-NEXT: ret
entry:
%0 = load i64, ptr @tl_4
ret i64 %0
}
define dso_local i64 @load_tl_8() nounwind {
; RV32I-LABEL: load_tl_8:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: lui a0, %tprel_hi(tl_8)
; RV32I-NEXT: add a1, a0, tp, %tprel_add(tl_8)
; RV32I-NEXT: lw a0, %tprel_lo(tl_8)(a1)
; RV32I-NEXT: lw a1, %tprel_lo(tl_8+4)(a1)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: load_tl_8:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: lui a0, %tprel_hi(tl_8)
; RV32I-MEDIUM-NEXT: add a1, a0, tp, %tprel_add(tl_8)
; RV32I-MEDIUM-NEXT: lw a0, %tprel_lo(tl_8)(a1)
; RV32I-MEDIUM-NEXT: lw a1, %tprel_lo(tl_8+4)(a1)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: load_tl_8:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: lui a0, %tprel_hi(tl_8)
; RV64I-NEXT: add a0, a0, tp, %tprel_add(tl_8)
; RV64I-NEXT: ld a0, %tprel_lo(tl_8)(a0)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: load_tl_8:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: lui a0, %tprel_hi(tl_8)
; RV64I-MEDIUM-NEXT: add a0, a0, tp, %tprel_add(tl_8)
; RV64I-MEDIUM-NEXT: ld a0, %tprel_lo(tl_8)(a0)
; RV64I-MEDIUM-NEXT: ret
entry:
%0 = load i64, ptr @tl_8
ret i64 %0
}
define dso_local i64 @load_const_ok() nounwind {
; RV32I-LABEL: load_const_ok:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: lw a0, 2040(zero)
; RV32I-NEXT: lw a1, 2044(zero)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: load_const_ok:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: lw a0, 2040(zero)
; RV32I-MEDIUM-NEXT: lw a1, 2044(zero)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: load_const_ok:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: ld a0, 2040(zero)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: load_const_ok:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: ld a0, 2040(zero)
; RV64I-MEDIUM-NEXT: ret
entry:
%0 = load i64, ptr inttoptr (i32 2040 to ptr)
ret i64 %0
}
define dso_local i64 @load_cost_overflow() nounwind {
; RV32I-LABEL: load_cost_overflow:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: lui a0, 1
; RV32I-NEXT: lw a1, -2048(a0)
; RV32I-NEXT: lw a0, 2044(zero)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: load_cost_overflow:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: lui a0, 1
; RV32I-MEDIUM-NEXT: lw a1, -2048(a0)
; RV32I-MEDIUM-NEXT: lw a0, 2044(zero)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: load_cost_overflow:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: ld a0, 2044(zero)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: load_cost_overflow:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: ld a0, 2044(zero)
; RV64I-MEDIUM-NEXT: ret
entry:
%0 = load i64, ptr inttoptr (i64 2044 to ptr)
ret i64 %0
}
define dso_local i32 @load_const_medium() nounwind {
; RV32I-LABEL: load_const_medium:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: lui a0, 1
; RV32I-NEXT: lw a0, -16(a0)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: load_const_medium:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: lui a0, 1
; RV32I-MEDIUM-NEXT: lw a0, -16(a0)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: load_const_medium:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: lui a0, 1
; RV64I-NEXT: lw a0, -16(a0)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: load_const_medium:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: lui a0, 1
; RV64I-MEDIUM-NEXT: lw a0, -16(a0)
; RV64I-MEDIUM-NEXT: ret
entry:
%0 = load i32, ptr inttoptr (i64 4080 to ptr)
ret i32 %0
}
; The constant here is 0x7ffff800, this value requires LUI+ADDIW on RV64,
; LUI+ADDI would produce a different constant so we can't fold into the load
; offset.
define dso_local i32 @load_const_large() nounwind {
; RV32I-LABEL: load_const_large:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: lui a0, 524288
; RV32I-NEXT: lw a0, -2048(a0)
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: load_const_large:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: lui a0, 524288
; RV32I-MEDIUM-NEXT: lw a0, -2048(a0)
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: load_const_large:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: lui a0, 524288
; RV64I-NEXT: addiw a0, a0, -2048
; RV64I-NEXT: lw a0, 0(a0)
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: load_const_large:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: lui a0, 524288
; RV64I-MEDIUM-NEXT: addiw a0, a0, -2048
; RV64I-MEDIUM-NEXT: lw a0, 0(a0)
; RV64I-MEDIUM-NEXT: ret
entry:
%0 = load i32, ptr inttoptr (i64 2147481600 to ptr)
ret i32 %0
}
%struct.S = type { i64, i64 }
define i64 @fold_addi_from_different_bb(i64 %k, i64 %n, ptr %a) nounwind {
; RV32I-LABEL: fold_addi_from_different_bb:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: addi sp, sp, -48
; RV32I-NEXT: sw ra, 44(sp) # 4-byte Folded Spill
; RV32I-NEXT: sw s0, 40(sp) # 4-byte Folded Spill
; RV32I-NEXT: sw s1, 36(sp) # 4-byte Folded Spill
; RV32I-NEXT: sw s2, 32(sp) # 4-byte Folded Spill
; RV32I-NEXT: sw s3, 28(sp) # 4-byte Folded Spill
; RV32I-NEXT: sw s4, 24(sp) # 4-byte Folded Spill
; RV32I-NEXT: sw s5, 20(sp) # 4-byte Folded Spill
; RV32I-NEXT: sw s6, 16(sp) # 4-byte Folded Spill
; RV32I-NEXT: sw s7, 12(sp) # 4-byte Folded Spill
; RV32I-NEXT: mv s0, a4
; RV32I-NEXT: mv s1, a3
; RV32I-NEXT: mv s2, a2
; RV32I-NEXT: beqz a3, .LBB20_3
; RV32I-NEXT: # %bb.1: # %entry
; RV32I-NEXT: slti a1, s1, 0
; RV32I-NEXT: beqz a1, .LBB20_4
; RV32I-NEXT: .LBB20_2:
; RV32I-NEXT: li s3, 0
; RV32I-NEXT: li s4, 0
; RV32I-NEXT: j .LBB20_6
; RV32I-NEXT: .LBB20_3:
; RV32I-NEXT: seqz a1, s2
; RV32I-NEXT: bnez a1, .LBB20_2
; RV32I-NEXT: .LBB20_4: # %for.body.lr.ph
; RV32I-NEXT: li s5, 0
; RV32I-NEXT: li s6, 0
; RV32I-NEXT: li s3, 0
; RV32I-NEXT: li s4, 0
; RV32I-NEXT: slli a0, a0, 4
; RV32I-NEXT: add s7, s0, a0
; RV32I-NEXT: .LBB20_5: # %for.body
; RV32I-NEXT: # =>This Inner Loop Header: Depth=1
; RV32I-NEXT: mv a0, s0
; RV32I-NEXT: call f
; RV32I-NEXT: lw a0, 12(s7)
; RV32I-NEXT: lw a1, 8(s7)
; RV32I-NEXT: add a0, a0, s4
; RV32I-NEXT: add s3, a1, s3
; RV32I-NEXT: sltu s4, s3, a1
; RV32I-NEXT: addi s5, s5, 1
; RV32I-NEXT: seqz a1, s5
; RV32I-NEXT: add s6, s6, a1
; RV32I-NEXT: xor a1, s5, s2
; RV32I-NEXT: xor a2, s6, s1
; RV32I-NEXT: or a1, a1, a2
; RV32I-NEXT: add s4, a0, s4
; RV32I-NEXT: bnez a1, .LBB20_5
; RV32I-NEXT: .LBB20_6: # %for.cond.cleanup
; RV32I-NEXT: mv a0, s3
; RV32I-NEXT: mv a1, s4
; RV32I-NEXT: lw ra, 44(sp) # 4-byte Folded Reload
; RV32I-NEXT: lw s0, 40(sp) # 4-byte Folded Reload
; RV32I-NEXT: lw s1, 36(sp) # 4-byte Folded Reload
; RV32I-NEXT: lw s2, 32(sp) # 4-byte Folded Reload
; RV32I-NEXT: lw s3, 28(sp) # 4-byte Folded Reload
; RV32I-NEXT: lw s4, 24(sp) # 4-byte Folded Reload
; RV32I-NEXT: lw s5, 20(sp) # 4-byte Folded Reload
; RV32I-NEXT: lw s6, 16(sp) # 4-byte Folded Reload
; RV32I-NEXT: lw s7, 12(sp) # 4-byte Folded Reload
; RV32I-NEXT: addi sp, sp, 48
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: fold_addi_from_different_bb:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: addi sp, sp, -48
; RV32I-MEDIUM-NEXT: sw ra, 44(sp) # 4-byte Folded Spill
; RV32I-MEDIUM-NEXT: sw s0, 40(sp) # 4-byte Folded Spill
; RV32I-MEDIUM-NEXT: sw s1, 36(sp) # 4-byte Folded Spill
; RV32I-MEDIUM-NEXT: sw s2, 32(sp) # 4-byte Folded Spill
; RV32I-MEDIUM-NEXT: sw s3, 28(sp) # 4-byte Folded Spill
; RV32I-MEDIUM-NEXT: sw s4, 24(sp) # 4-byte Folded Spill
; RV32I-MEDIUM-NEXT: sw s5, 20(sp) # 4-byte Folded Spill
; RV32I-MEDIUM-NEXT: sw s6, 16(sp) # 4-byte Folded Spill
; RV32I-MEDIUM-NEXT: sw s7, 12(sp) # 4-byte Folded Spill
; RV32I-MEDIUM-NEXT: mv s0, a4
; RV32I-MEDIUM-NEXT: mv s1, a3
; RV32I-MEDIUM-NEXT: mv s2, a2
; RV32I-MEDIUM-NEXT: beqz a3, .LBB20_3
; RV32I-MEDIUM-NEXT: # %bb.1: # %entry
; RV32I-MEDIUM-NEXT: slti a1, s1, 0
; RV32I-MEDIUM-NEXT: beqz a1, .LBB20_4
; RV32I-MEDIUM-NEXT: .LBB20_2:
; RV32I-MEDIUM-NEXT: li s3, 0
; RV32I-MEDIUM-NEXT: li s4, 0
; RV32I-MEDIUM-NEXT: j .LBB20_6
; RV32I-MEDIUM-NEXT: .LBB20_3:
; RV32I-MEDIUM-NEXT: seqz a1, s2
; RV32I-MEDIUM-NEXT: bnez a1, .LBB20_2
; RV32I-MEDIUM-NEXT: .LBB20_4: # %for.body.lr.ph
; RV32I-MEDIUM-NEXT: li s5, 0
; RV32I-MEDIUM-NEXT: li s6, 0
; RV32I-MEDIUM-NEXT: li s3, 0
; RV32I-MEDIUM-NEXT: li s4, 0
; RV32I-MEDIUM-NEXT: slli a0, a0, 4
; RV32I-MEDIUM-NEXT: add s7, s0, a0
; RV32I-MEDIUM-NEXT: .LBB20_5: # %for.body
; RV32I-MEDIUM-NEXT: # =>This Inner Loop Header: Depth=1
; RV32I-MEDIUM-NEXT: mv a0, s0
; RV32I-MEDIUM-NEXT: call f
; RV32I-MEDIUM-NEXT: lw a0, 12(s7)
; RV32I-MEDIUM-NEXT: lw a1, 8(s7)
; RV32I-MEDIUM-NEXT: add a0, a0, s4
; RV32I-MEDIUM-NEXT: add s3, a1, s3
; RV32I-MEDIUM-NEXT: sltu s4, s3, a1
; RV32I-MEDIUM-NEXT: addi s5, s5, 1
; RV32I-MEDIUM-NEXT: seqz a1, s5
; RV32I-MEDIUM-NEXT: add s6, s6, a1
; RV32I-MEDIUM-NEXT: xor a1, s5, s2
; RV32I-MEDIUM-NEXT: xor a2, s6, s1
; RV32I-MEDIUM-NEXT: or a1, a1, a2
; RV32I-MEDIUM-NEXT: add s4, a0, s4
; RV32I-MEDIUM-NEXT: bnez a1, .LBB20_5
; RV32I-MEDIUM-NEXT: .LBB20_6: # %for.cond.cleanup
; RV32I-MEDIUM-NEXT: mv a0, s3
; RV32I-MEDIUM-NEXT: mv a1, s4
; RV32I-MEDIUM-NEXT: lw ra, 44(sp) # 4-byte Folded Reload
; RV32I-MEDIUM-NEXT: lw s0, 40(sp) # 4-byte Folded Reload
; RV32I-MEDIUM-NEXT: lw s1, 36(sp) # 4-byte Folded Reload
; RV32I-MEDIUM-NEXT: lw s2, 32(sp) # 4-byte Folded Reload
; RV32I-MEDIUM-NEXT: lw s3, 28(sp) # 4-byte Folded Reload
; RV32I-MEDIUM-NEXT: lw s4, 24(sp) # 4-byte Folded Reload
; RV32I-MEDIUM-NEXT: lw s5, 20(sp) # 4-byte Folded Reload
; RV32I-MEDIUM-NEXT: lw s6, 16(sp) # 4-byte Folded Reload
; RV32I-MEDIUM-NEXT: lw s7, 12(sp) # 4-byte Folded Reload
; RV32I-MEDIUM-NEXT: addi sp, sp, 48
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: fold_addi_from_different_bb:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: addi sp, sp, -48
; RV64I-NEXT: sd ra, 40(sp) # 8-byte Folded Spill
; RV64I-NEXT: sd s0, 32(sp) # 8-byte Folded Spill
; RV64I-NEXT: sd s1, 24(sp) # 8-byte Folded Spill
; RV64I-NEXT: sd s2, 16(sp) # 8-byte Folded Spill
; RV64I-NEXT: sd s3, 8(sp) # 8-byte Folded Spill
; RV64I-NEXT: blez a1, .LBB20_3
; RV64I-NEXT: # %bb.1: # %for.body.lr.ph
; RV64I-NEXT: mv s0, a2
; RV64I-NEXT: mv s1, a1
; RV64I-NEXT: li s2, 0
; RV64I-NEXT: slli a0, a0, 4
; RV64I-NEXT: add s3, a2, a0
; RV64I-NEXT: .LBB20_2: # %for.body
; RV64I-NEXT: # =>This Inner Loop Header: Depth=1
; RV64I-NEXT: mv a0, s0
; RV64I-NEXT: call f
; RV64I-NEXT: ld a0, 8(s3)
; RV64I-NEXT: addi s1, s1, -1
; RV64I-NEXT: add s2, a0, s2
; RV64I-NEXT: bnez s1, .LBB20_2
; RV64I-NEXT: j .LBB20_4
; RV64I-NEXT: .LBB20_3:
; RV64I-NEXT: li s2, 0
; RV64I-NEXT: .LBB20_4: # %for.cond.cleanup
; RV64I-NEXT: mv a0, s2
; RV64I-NEXT: ld ra, 40(sp) # 8-byte Folded Reload
; RV64I-NEXT: ld s0, 32(sp) # 8-byte Folded Reload
; RV64I-NEXT: ld s1, 24(sp) # 8-byte Folded Reload
; RV64I-NEXT: ld s2, 16(sp) # 8-byte Folded Reload
; RV64I-NEXT: ld s3, 8(sp) # 8-byte Folded Reload
; RV64I-NEXT: addi sp, sp, 48
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: fold_addi_from_different_bb:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: addi sp, sp, -48
; RV64I-MEDIUM-NEXT: sd ra, 40(sp) # 8-byte Folded Spill
; RV64I-MEDIUM-NEXT: sd s0, 32(sp) # 8-byte Folded Spill
; RV64I-MEDIUM-NEXT: sd s1, 24(sp) # 8-byte Folded Spill
; RV64I-MEDIUM-NEXT: sd s2, 16(sp) # 8-byte Folded Spill
; RV64I-MEDIUM-NEXT: sd s3, 8(sp) # 8-byte Folded Spill
; RV64I-MEDIUM-NEXT: blez a1, .LBB20_3
; RV64I-MEDIUM-NEXT: # %bb.1: # %for.body.lr.ph
; RV64I-MEDIUM-NEXT: mv s0, a2
; RV64I-MEDIUM-NEXT: mv s1, a1
; RV64I-MEDIUM-NEXT: li s2, 0
; RV64I-MEDIUM-NEXT: slli a0, a0, 4
; RV64I-MEDIUM-NEXT: add s3, a2, a0
; RV64I-MEDIUM-NEXT: .LBB20_2: # %for.body
; RV64I-MEDIUM-NEXT: # =>This Inner Loop Header: Depth=1
; RV64I-MEDIUM-NEXT: mv a0, s0
; RV64I-MEDIUM-NEXT: call f
; RV64I-MEDIUM-NEXT: ld a0, 8(s3)
; RV64I-MEDIUM-NEXT: addi s1, s1, -1
; RV64I-MEDIUM-NEXT: add s2, a0, s2
; RV64I-MEDIUM-NEXT: bnez s1, .LBB20_2
; RV64I-MEDIUM-NEXT: j .LBB20_4
; RV64I-MEDIUM-NEXT: .LBB20_3:
; RV64I-MEDIUM-NEXT: li s2, 0
; RV64I-MEDIUM-NEXT: .LBB20_4: # %for.cond.cleanup
; RV64I-MEDIUM-NEXT: mv a0, s2
; RV64I-MEDIUM-NEXT: ld ra, 40(sp) # 8-byte Folded Reload
; RV64I-MEDIUM-NEXT: ld s0, 32(sp) # 8-byte Folded Reload
; RV64I-MEDIUM-NEXT: ld s1, 24(sp) # 8-byte Folded Reload
; RV64I-MEDIUM-NEXT: ld s2, 16(sp) # 8-byte Folded Reload
; RV64I-MEDIUM-NEXT: ld s3, 8(sp) # 8-byte Folded Reload
; RV64I-MEDIUM-NEXT: addi sp, sp, 48
; RV64I-MEDIUM-NEXT: ret
entry:
%cmp4 = icmp sgt i64 %n, 0
br i1 %cmp4, label %for.body.lr.ph, label %for.cond.cleanup
for.body.lr.ph: ; preds = %entry
; TODO: when this GEP is expanded, the resulting `addi` should be folded
; into the load in the loop body.
%y = getelementptr inbounds %struct.S, ptr %a, i64 %k, i32 1
br label %for.body
for.cond.cleanup: ; preds = %for.body, %entry
%s.0.lcssa = phi i64 [ 0, %entry ], [ %add, %for.body ]
ret i64 %s.0.lcssa
for.body: ; preds = %for.body.lr.ph, %for.body
%i.06 = phi i64 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
%s.05 = phi i64 [ 0, %for.body.lr.ph ], [ %add, %for.body ]
call void @f(ptr %a)
%0 = load i64, ptr %y, align 8
%add = add nsw i64 %0, %s.05
%inc = add nuw nsw i64 %i.06, 1
%exitcond.not = icmp eq i64 %inc, %n
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}
declare void @f(ptr)
@g = external dso_local global [100 x [100 x i8]]
; This test used to crash due to calling getVRegDef on X0.
define i32 @crash() {
; RV32I-LABEL: crash:
; RV32I: # %bb.0: # %entry
; RV32I-NEXT: lui a0, %hi(g+401)
; RV32I-NEXT: lbu a0, %lo(g+401)(a0)
; RV32I-NEXT: seqz a0, a0
; RV32I-NEXT: sw a0, 0(zero)
; RV32I-NEXT: li a0, 0
; RV32I-NEXT: ret
;
; RV32I-MEDIUM-LABEL: crash:
; RV32I-MEDIUM: # %bb.0: # %entry
; RV32I-MEDIUM-NEXT: .Lpcrel_hi14:
; RV32I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g+401)
; RV32I-MEDIUM-NEXT: lbu a0, %pcrel_lo(.Lpcrel_hi14)(a0)
; RV32I-MEDIUM-NEXT: seqz a0, a0
; RV32I-MEDIUM-NEXT: sw a0, 0(zero)
; RV32I-MEDIUM-NEXT: li a0, 0
; RV32I-MEDIUM-NEXT: ret
;
; RV64I-LABEL: crash:
; RV64I: # %bb.0: # %entry
; RV64I-NEXT: lui a0, %hi(g+401)
; RV64I-NEXT: lbu a0, %lo(g+401)(a0)
; RV64I-NEXT: seqz a0, a0
; RV64I-NEXT: sw a0, 0(zero)
; RV64I-NEXT: li a0, 0
; RV64I-NEXT: ret
;
; RV64I-MEDIUM-LABEL: crash:
; RV64I-MEDIUM: # %bb.0: # %entry
; RV64I-MEDIUM-NEXT: .Lpcrel_hi14:
; RV64I-MEDIUM-NEXT: auipc a0, %pcrel_hi(g+401)
; RV64I-MEDIUM-NEXT: lbu a0, %pcrel_lo(.Lpcrel_hi14)(a0)
; RV64I-MEDIUM-NEXT: seqz a0, a0
; RV64I-MEDIUM-NEXT: sw a0, 0(zero)
; RV64I-MEDIUM-NEXT: li a0, 0
; RV64I-MEDIUM-NEXT: ret
entry:
%idxprom7.peel = sext i32 1 to i64
br label %for.inc.peel
for.inc.peel: ; preds = %entry
%arrayidx8.3.peel = getelementptr [100 x [100 x i8]], ptr @g, i64 0, i64 4, i64 %idxprom7.peel
%0 = load i8, ptr %arrayidx8.3.peel, align 1
%tobool.not.3.peel = icmp eq i8 %0, 0
%spec.select = select i1 %tobool.not.3.peel, i32 1, i32 0
store i32 %spec.select, ptr null, align 4
ret i32 0
}
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