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9c695e4fee
Mem2Reg shouldn't be optimizing a function that is marked optnone. There is a test checking this that fails when mem2reg is explicitly added to the standard pass pipeline. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255336 91177308-0d34-0410-b5e6-96231b3b80d8
22 lines
693 B
LLVM
22 lines
693 B
LLVM
; RUN: opt < %s -mem2reg -S | FileCheck %s
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; This function is optnone, so the allocas should not be eliminated.
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; CHECK-LABEL: @testfunc
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; CHECK: alloca
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; CHECK: alloca
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define double @testfunc(i32 %i, double %j) optnone noinline {
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%I = alloca i32 ; <i32*> [#uses=4]
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%J = alloca double ; <double*> [#uses=2]
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store i32 %i, i32* %I
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store double %j, double* %J
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%t1 = load i32, i32* %I ; <i32> [#uses=1]
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%t2 = add i32 %t1, 1 ; <i32> [#uses=1]
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store i32 %t2, i32* %I
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%t3 = load i32, i32* %I ; <i32> [#uses=1]
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%t4 = sitofp i32 %t3 to double ; <double> [#uses=1]
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%t5 = load double, double* %J ; <double> [#uses=1]
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%t6 = fmul double %t4, %t5 ; <double> [#uses=1]
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ret double %t6
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}
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