derek.holloway
7502bf64a4
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50 lines
1.7 KiB
LLVM
50 lines
1.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes='lto<O3>' -S < %s | FileCheck %s
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define void @hoist_fdiv(ptr %a, float %b) {
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; CHECK-LABEL: @hoist_fdiv(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = fdiv fast float 1.000000e+00, [[B:%.*]]
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; CHECK-NEXT: br label [[FOR_COND:%.*]]
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; CHECK: for.cond:
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; CHECK-NEXT: [[I_0:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[FOR_INC:%.*]] ]
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; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[I_0]], 1024
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; CHECK-NEXT: br i1 [[CMP_NOT]], label [[FOR_END:%.*]], label [[FOR_INC]]
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; CHECK: for.inc:
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; CHECK-NEXT: [[IDXPROM:%.*]] = zext nneg i32 [[I_0]] to i64
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; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds nuw [4 x i8], ptr [[A:%.*]], i64 [[IDXPROM]]
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; CHECK-NEXT: [[TMP1:%.*]] = load float, ptr [[ARRAYIDX]], align 4
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; CHECK-NEXT: [[TMP2:%.*]] = fmul fast float [[TMP1]], [[TMP0]]
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; CHECK-NEXT: store float [[TMP2]], ptr [[ARRAYIDX]], align 4
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; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_0]], 1
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; CHECK-NEXT: br label [[FOR_COND]]
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; CHECK: for.end:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %for.cond
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for.cond:
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%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
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%cmp = icmp ne i32 %i.0, 1024
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br i1 %cmp, label %for.body, label %for.cond.cleanup
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for.cond.cleanup:
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br label %for.end
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for.body:
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%idxprom = sext i32 %i.0 to i64
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%arrayidx = getelementptr inbounds float, ptr %a, i64 %idxprom
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%0 = load float, ptr %arrayidx, align 4
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%div = fdiv fast float %0, %b
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store float %div, ptr %arrayidx, align 4
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br label %for.inc
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for.inc:
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%inc = add nsw i32 %i.0, 1
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br label %for.cond
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for.end:
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ret void
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}
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