; RUN: llc -mtriple=thumbv8m.base-eabi -mattr=+execute-only %s -o - | FileCheck --check-prefix=CHECK --check-prefix=CHECK-T2BASE %s
; RUN: llc -mtriple=thumbv8m.base-eabi -mcpu=cortex-m23 -mattr=+execute-only %s -o - | FileCheck --check-prefix=CHECK --check-prefix=CHECK-T2BASE %s
; RUN: llc -mtriple=thumbv7m-eabi -mattr=+execute-only %s -o - | FileCheck --check-prefix=CHECK --check-prefix=CHECK-T2 %s
; RUN: llc -mtriple=thumbv8m.main-eabi -mattr=+execute-only %s -o - | FileCheck --check-prefix=CHECK --check-prefix=CHECK-T2 %s
; RUN: llc -mtriple=thumbv6m-eabi -mattr=+execute-only %s -o - | FileCheck --check-prefix=CHECK-T1 %s
; CHECK-NOT: {{^ *}}.text{{$}}
; CHECK: .section .text,"axy",%progbits,unique,0
@var = global i32 0
define i32 @global() minsize {
; CHECK-LABEL: global:
; CHECK: movw [[GLOBDEST:r[0-9]+]], :lower16:var
; CHECK-NEXT: movt [[GLOBDEST]], :upper16:var
; CHECK-T1-LABEL: global:
; CHECK-T1: movs [[GLOBDEST:r[0-9]+]], :upper8_15:var
; CHECK-T1-NEXT: lsls [[GLOBDEST]], [[GLOBDEST]], #8
; CHECK-T1-NEXT: adds [[GLOBDEST]], :upper0_7:var
; CHECK-T1-NEXT: lsls [[GLOBDEST]], [[GLOBDEST]], #8
; CHECK-T1-NEXT: adds [[GLOBDEST]], :lower8_15:var
; CHECK-T1-NEXT: lsls [[GLOBDEST]], [[GLOBDEST]], #8
; CHECK-T1-NEXT: adds [[GLOBDEST]], :lower0_7:var
%val = load i32, ptr @var
ret i32 %val
}
define i32 @jump_table(i32 %c, i32 %a, i32 %b) #0 {
; CHECK-LABEL: jump_table:
; CHECK-T2: adr.w [[REG_JT:r[0-9]+]], .LJTI1_0
; CHECK-T2: add.w [[REG_ENTRY:r[0-9]+]], [[REG_JT]], {{r[0-9]+}}, lsl #2
; CHECK-T2: mov pc, [[REG_ENTRY]]
; CHECK-T2BASE: lsls [[REG_OFFSET:r[0-9]+]], {{r[0-9]+}}, #2
; CHECK-T2BASE: adr [[REG_JT:r[0-9]+]], .LJTI1_0
; CHECK-T2BASE: adds [[REG_ENTRY:r[0-9]+]], [[REG_JT]], [[REG_OFFSET]]
; CHECK-T2BASE: mov pc, [[REG_ENTRY]]
; CHECK-LABEL: .LJTI1_0:
; CHECK-NEXT: b.w
; CHECK-NEXT: b.w
; CHECK-NEXT: b.w
; CHECK-NEXT: b.w
; CHECK-NEXT: b.w
; CHECK-NEXT: b.w
; CHECK-T1-LABEL: jump_table:
; CHECK-T1: lsls [[REG_OFFSET:r[0-9]+]], {{r[0-9]+}}, #2
; CHECK-T1-NEXT: movs [[REG_JT:r[0-9]+]], :upper8_15:.LJTI1_0
; CHECK-T1-NEXT: lsls [[REG_JT]], [[REG_JT]], #8
; CHECK-T1-NEXT: adds [[REG_JT]], :upper0_7:.LJTI1_0
; CHECK-T1-NEXT: lsls [[REG_JT]], [[REG_JT]], #8
; CHECK-T1-NEXT: adds [[REG_JT]], :lower8_15:.LJTI1_0
; CHECK-T1-NEXT: lsls [[REG_JT]], [[REG_JT]], #8
; CHECK-T1-NEXT: adds [[REG_JT]], :lower0_7:.LJTI1_0
; CHECK-T1-NEXT: ldr [[REG_ENTRY:r[0-9]+]], [[[REG_JT]], [[REG_OFFSET]]]
; CHECK-T1-NEXT: mov pc, [[REG_ENTRY]]
; CHECK-T1: .section .rodata,"a",%progbits
; CHECK-T1-NEXT: .p2align 2, 0x0
; CHECK-T1-NEXT: .LJTI1_0:
; CHECK-T1-NEXT: .long
; CHECK-T1-NEXT: .long
; CHECK-T1-NEXT: .long
; CHECK-T1-NEXT: .long
; CHECK-T1-NEXT: .long
; CHECK-T1-NEXT: .long
entry:
switch i32 %c, label %return [
i32 1, label %sw.bb
i32 2, label %sw.bb1
i32 3, label %sw.bb3
i32 4, label %sw.bb4
i32 5, label %sw.bb6
i32 6, label %sw.bb8
]
sw.bb: ; preds = %entry
%add = add nsw i32 %a, 6
br label %return
sw.bb1: ; preds = %entry
%add2 = add nsw i32 %a, 4
br label %return
sw.bb3: ; preds = %entry
%sub = add nsw i32 %a, -3
br label %return
sw.bb4: ; preds = %entry
%add5 = add nsw i32 %b, 5
br label %return
sw.bb6: ; preds = %entry
%add7 = add nsw i32 %a, 1
br label %return
sw.bb8: ; preds = %entry
%add9 = add nsw i32 %a, 2
br label %return
return: ; preds = %entry, %sw.bb8, %sw.bb6, %sw.bb4, %sw.bb3, %sw.bb1, %sw.bb
%retval.0 = phi i32 [ %add9, %sw.bb8 ], [ %add7, %sw.bb6 ], [ %add5, %sw.bb4 ], [ %sub, %sw.bb3 ], [ %add2, %sw.bb1 ], [ %add, %sw.bb ], [ 0, %entry ]
ret i32 %retval.0
}
@.str = private unnamed_addr constant [4 x i8] c"FOO\00", align 1
define hidden ptr @string_literal() {
entry:
; CHECK-LABEL: string_literal:
; CHECK: movw [[STRLIT:r[0-9]+]], :lower16:.L.str
; CHECK-NEXT: movt [[STRLIT]], :upper16:.L.str
; CHECK-T1-LABEL: string_literal:
; CHECK-T1: movs [[STRLIT:r[0-9]+]], :upper8_15:.L.str
; CHECK-T1-NEXT: lsls [[STRLIT]], [[STRLIT]], #8
; CHECK-T1-NEXT: adds [[STRLIT]], :upper0_7:.L.str
; CHECK-T1-NEXT: lsls [[STRLIT]], [[STRLIT]], #8
; CHECK-T1-NEXT: adds [[STRLIT]], :lower8_15:.L.str
; CHECK-T1-NEXT: lsls [[STRLIT]], [[STRLIT]], #8
; CHECK-T1-NEXT: adds [[STRLIT]], :lower0_7:.L.str
ret ptr @.str
}
@external_global = external global i32
define i32 @test_external_global() {
entry:
; CHECK-LABEL: external_global:
; CHECK: movw [[EXTGLOB:r[0-9]+]], :lower16:external_global
; CHECK-NEXT: movt [[EXTGLOB]], :upper16:external_global
; CHECK-T1-LABEL: external_global:
; CHECK-T1: movs [[EXTGLOB:r[0-9]+]], :upper8_15:external_global
; CHECK-T1-NEXT: lsls [[EXTGLOB]], [[EXTGLOB]], #8
; CHECK-T1-NEXT: adds [[EXTGLOB]], :upper0_7:external_global
; CHECK-T1-NEXT: lsls [[EXTGLOB]], [[EXTGLOB]], #8
; CHECK-T1-NEXT: adds [[EXTGLOB]], :lower8_15:external_global
; CHECK-T1-NEXT: lsls [[EXTGLOB]], [[EXTGLOB]], #8
; CHECK-T1-NEXT: adds [[EXTGLOB]], :lower0_7:external_global
%v = load i32, ptr @external_global
ret i32 %v
}
define i32 @test_imm() {
entry:
; CHECK-LABEL: test_imm:
; CHECK: movw [[IMMDEST:r[0-9]+]], #13124
; CHECK-NEXT: movt [[IMMDEST]], #4386
; CHECK-NEXT: bx lr
; CHECK-T1-LABEL: test_imm:
; CHECK-T1: movs [[IMMDEST:r[0-9]+]], #17
; CHECK-T1-NEXT: lsls [[IMMDEST]], [[IMMDEST]], #8
; CHECK-T1-NEXT: adds [[IMMDEST]], #34
; CHECK-T1-NEXT: lsls [[IMMDEST]], [[IMMDEST]], #8
; CHECK-T1-NEXT: adds [[IMMDEST]], #51
; CHECK-T1-NEXT: lsls [[IMMDEST]], [[IMMDEST]], #8
; CHECK-T1-NEXT: adds [[IMMDEST]], #68
; CHECK-T1-NEXT: bx lr
ret i32 u0x11223344
}
define i32 @test_imm_high_half() {
entry:
; CHECK-LABEL: test_imm_high_half:
; CHECK-T2BASE: movw [[IMMDEST:r[0-9]+]], #0
; CHECK-T2: movs [[IMMDEST:r[0-9]+]], #0
; CHECK-NEXT: movt [[IMMDEST]], #4386
; CHECK-NEXT: bx lr
; CHECK-T1-LABEL: test_imm_high_half:
; CHECK-T1: movs [[IMMDEST:r[0-9]+]], #17
; CHECK-T1-NEXT: lsls [[IMMDEST]], [[IMMDEST]], #8
; CHECK-T1-NEXT: adds [[IMMDEST]], #34
; CHECK-T1-NEXT: lsls [[IMMDEST]], [[IMMDEST]], #16
; CHECK-T1-NEXT: bx lr
ret i32 u0x11220000
}
define i32 @test_imm_low_half() {
; CHECK-LABEL: test_imm_low_half:
; CHECK: movw [[IMMDEST:r[0-9]+]], #13124
; CHECK-NEXT: bx lr
; CHECK-T1-LABEL: test_imm_low_half:
; CHECK-T1: movs [[IMMDEST]], #51
; CHECK-T1-NEXT: lsls [[IMMDEST]], [[IMMDEST]], #8
; CHECK-T1-NEXT: adds [[IMMDEST]], #68
; CHECK-T1-NEXT: bx lr
entry:
ret i32 u0x3344
}
define i32 @test_imm_middle_bytes() {
; CHECK-LABEL: test_imm_middle_bytes:
; CHECK: movw [[IMMDEST:r[0-9]+]], #13056
; CHECK-NEXT: movt [[IMMDEST]], #34
; CHECK-NEXT: bx lr
; CHECK-T1-LABEL: test_imm_middle_bytes:
; CHECK-T1: movs [[IMMDEST]], #34
; CHECK-T1-NEXT: lsls [[IMMDEST]], [[IMMDEST]], #8
; CHECK-T1-NEXT: adds [[IMMDEST]], #51
; CHECK-T1-NEXT: lsls [[IMMDEST]], [[IMMDEST]], #8
; CHECK-T1-NEXT: bx lr
ret i32 u0x223300
}
; This struct is sized so that the byval call does an inline memcpy of
; 0x10001 bytes.
%struct.struct_t = type { [65553 x i8] }
@byval_arg = global %struct.struct_t zeroinitializer
declare void @byval_fn(ptr byval(%struct.struct_t))
define void @test_byval_call() {
entry:
; CHECK-LABEL: test_byval_call:
; CHECK-T2BASE: movw [[BYVAL_CPYSIZE:r[0-9]+]], #1
; CHECK-T2: movs [[BYVAL_CPYSIZE:r[0-9]+]], #1
; CHECK: movt [[BYVAL_CPYSIZE]], #1
; CHECK-T1-LABEL: test_byval_call:
; CHECK-T1: movs [[BYVAL_CPYSIZE:r[0-9]+]], #1
; CHECK-T1: lsls [[BYVAL_CPYSIZE]], [[BYVAL_CPYSIZE]], #16
; CHECK-T1: adds [[BYVAL_CPYSIZE]], #1
call void @byval_fn(ptr byval(%struct.struct_t) @byval_arg)
ret void
}
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