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1f67c63cb2
This commit also implements these functions for R600 and removes a test case that was relying on the buggy behavior. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187007 91177308-0d34-0410-b5e6-96231b3b80d8
23 lines
696 B
LLVM
23 lines
696 B
LLVM
; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s --check-prefix=R600-CHECK
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; RUN: llc < %s -march=r600 -mcpu=SI | FileCheck %s --check-prefix=SI-CHECK
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; DAGCombiner will transform:
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; (fabs (f32 bitcast (i32 a))) => (f32 bitcast (and (i32 a), 0x7FFFFFFF))
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; unless isFabsFree returns true
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; R600-CHECK: @fabs_free
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; R600-CHECK-NOT: AND
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; R600-CHECK: |PV.{{[XYZW]}}|
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; SI-CHECK: @fabs_free
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; SI-CHECK: V_ADD_F32_e64 VGPR{{[0-9]}}, SGPR{{[0-9]}}, 0, 1, 0, 0, 0
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define void @fabs_free(float addrspace(1)* %out, i32 %in) {
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entry:
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%0 = bitcast i32 %in to float
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%1 = call float @fabs(float %0)
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store float %1, float addrspace(1)* %out
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ret void
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}
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declare float @fabs(float ) readnone
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