# REQUIRES: x86-registered-target
# RUN: llc -mtriple=x86_64-unknown-linux-gnu -run-pass=mir-debugify,dead-mi-elimination,mir-check-debugify -o - %s 2>&1 | FileCheck %s
# RUN: llc -mtriple=x86_64-unknown-linux-gnu -run-pass=mir-debugify,mir-check-debugify -o - %s 2>&1 | FileCheck %s --check-prefix=CHECK-PASS
# RUN: llc --experimental-debuginfo-iterators=false -mtriple=x86_64-unknown-linux-gnu -run-pass=mir-debugify,dead-mi-elimination,mir-check-debugify -o - %s 2>&1 | FileCheck %s
# RUN: llc --experimental-debuginfo-iterators=false -mtriple=x86_64-unknown-linux-gnu -run-pass=mir-debugify,mir-check-debugify -o - %s 2>&1 | FileCheck %s --check-prefix=CHECK-PASS
--- |
; ModuleID = 'check-line-and-variables.mir'
source_filename = "check-line-and-variables.ll"
@ga = dso_local global i32 2, align 4
; Function Attrs: noinline nounwind optnone uwtable
define dso_local i32 @foo(i32 %a, i32 %b) {
entry:
%a.addr = alloca i32, align 4
%b.addr = alloca i32, align 4
%c = alloca i32, align 4
store i32 %a, ptr %a.addr, align 4
store i32 %b, ptr %b.addr, align 4
%0 = load i32, ptr %a.addr, align 4
%1 = load i32, ptr %b.addr, align 4
%add = add nsw i32 %0, %1
store i32 %add, ptr %c, align 4
%2 = load i32, ptr %c, align 4
%mul = mul nsw i32 %2, 2
store i32 %mul, ptr @ga, align 4
%3 = load i32, ptr %c, align 4
; dead-mi-elimination will remove %4 = ...
%4 = load i32, ptr %a.addr, align 4
ret i32 %3
}
...
---
name: foo
alignment: 16
stack:
- { id: 0, name: a.addr, type: default, offset: 0, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 1, name: b.addr, type: default, offset: 0, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 2, name: c, type: default, offset: 0, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
body: |
bb.0.entry:
liveins: $edi, $esi
%2:gr32 = COPY $esi
%0:gr32 = COPY $edi
%1:gr32 = COPY killed %0
%3:gr32 = COPY killed %2
MOV32mr %stack.0.a.addr, 1, $noreg, 0, $noreg, %1 :: (store (s32) into %ir.a.addr)
MOV32mr %stack.1.b.addr, 1, $noreg, 0, $noreg, %3 :: (store (s32) into %ir.b.addr)
%14:gr32 = MOV32rm %stack.0.a.addr, 1, $noreg, 0, $noreg :: (load (s32) from %ir.a.addr)
%13:gr32 = ADD32rm killed %14, %stack.1.b.addr, 1, $noreg, 0, $noreg, implicit-def $eflags :: (load (s32) from %ir.b.addr)
; dead-mi-elimination will remove %15:gr32 = ...
%15:gr32 = MOV32rm %stack.0.a.addr, 1, $noreg, 0, $noreg :: (load (s32) from %ir.a.addr)
MOV32mr %stack.2.c, 1, $noreg, 0, $noreg, killed %13 :: (store (s32) into %ir.c)
%9:gr32 = MOV32rm %stack.2.c, 1, $noreg, 0, $noreg :: (load (s32) from %ir.c)
%8:gr32 = SHL32ri killed %9, 1, implicit-def $eflags
MOV32mr $noreg, 1, $noreg, @ga, $noreg, killed %8 :: (store (s32) into @ga)
%5:gr32 = MOV32rm %stack.2.c, 1, $noreg, 0, $noreg :: (load (s32) from %ir.c)
$eax = COPY %5
RET64 implicit $eax
;CHECK: WARNING: Missing line 9
;CHECK-NEXT: Machine IR debug info check: FAIL
;CHECK-PASS: Machine IR debug info check: PASS
...
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