58 lines
2.5 KiB
YAML
58 lines
2.5 KiB
YAML
# RUN: llc -mtriple=x86_64-gnu-linux -run-pass=machine-combiner %s -o - | FileCheck %s
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--- |
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define float @reassoc_me(float %f1, float %f2, float %f3, float %f4) !dbg !4 {
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%add = fadd reassoc nsz float %f1, %f2, !dbg !10
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%add1 = fadd reassoc nsz float %add, %f3, !dbg !10
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%add2 = fadd reassoc nsz float %add1, %f4, !dbg !10
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call void @llvm.dbg.value(metadata float %add2, metadata !9, metadata !DIExpression()), !dbg !10
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ret float %add2, !dbg !10
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}
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2, !3}
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!0 = distinct !DICompileUnit(language: DW_LANG_C11, file: !1, producer: "hello", isOptimized: true, emissionKind: FullDebug)
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!1 = !DIFile(filename: "reassoc.c", directory: "blah")
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!2 = !{i32 7, !"Dwarf Version", i32 4}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = distinct !DISubprogram(name: "reassoc_me", scope: !1, file: !1, line: 1, type: !5, scopeLine: 1, unit: !0, retainedNodes: !8)
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!5 = !DISubroutineType(types: !6)
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!6 = !{!7, !7, !7, !7, !7}
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!7 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float)
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!8 = !{!9}
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!9 = !DILocalVariable(name: "temp3", scope: !4, file: !1, line: 4, type: !7)
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!10 = !DILocation(line: 0, scope: !4)
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...
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---
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name: reassoc_me
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alignment: 16
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debugInstrRef: true
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body: |
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bb.0 (%ir-block.0):
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liveins: $xmm0, $xmm1, $xmm2, $xmm3
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%3:fr32 = COPY $xmm3
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%2:fr32 = COPY $xmm2
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%1:fr32 = COPY $xmm1
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%0:fr32 = COPY $xmm0
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%4:fr32 = nsz reassoc nofpexcept ADDSSrr %0, %1, implicit $mxcsr, debug-location !10
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%5:fr32 = nsz reassoc nofpexcept ADDSSrr %4, %2, implicit $mxcsr, debug-location !10
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%6:fr32 = nsz reassoc nofpexcept ADDSSrr %5, %3, implicit $mxcsr, debug-instr-number 1, debug-location !10
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DBG_INSTR_REF !9, !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(1, 0), debug-location !10
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$xmm0 = COPY %6, debug-location !10
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RET 0, $xmm0, debug-location !10
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; CHECK: ![[VAR:.*]] = !DILocalVariable(name: "temp3"
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; CHECK: %[[arg3:.*]]:fr32 = COPY $xmm3
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; CHECK-NEXT: %[[arg2:.*]]:fr32 = COPY $xmm2
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; CHECK-NEXT: %[[arg1:.*]]:fr32 = COPY $xmm1
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; CHECK-NEXT: %[[arg0:.*]]:fr32 = COPY $xmm0
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; CHECK-NEXT: %[[add1:.*]]:fr32 = {{.*}} ADDSSrr %[[arg0]], %[[arg1]]
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; CHECK-NEXT: %[[add2:.*]]:fr32 = {{.*}} ADDSSrr %[[arg2]], %[[arg3]]
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; CHECK-NEXT: ADDSSrr %[[add1]], killed %[[add2]], {{.*}} debug-instr-number 1
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; CHECK-NEXT: DBG_INSTR_REF ![[VAR]], !DIExpression(DW_OP_LLVM_arg, 0), dbg-instr-ref(1, 0)
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...
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