llvm-6502/test/CodeGen/R600/fabs.ll
Tom Stellard 3986785046 R600/SI: Use -verify-machineinstrs for most tests
We can't enable the verifier for tests with SI_IF and SI_ELSE, because
these instructions are always followed by a COPY which copies their
result to the next basic block.  This violates the machine verifier's
rule that non-terminators can not folow terminators.

Reviewed-by: Vincent Lejeune<vljn at ovi.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192366 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-10 17:11:46 +00:00

23 lines
718 B
LLVM

; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s --check-prefix=R600-CHECK
; RUN: llc < %s -march=r600 -mcpu=SI -verify-machineinstrs | FileCheck %s --check-prefix=SI-CHECK
; DAGCombiner will transform:
; (fabs (f32 bitcast (i32 a))) => (f32 bitcast (and (i32 a), 0x7FFFFFFF))
; unless isFabsFree returns true
; R600-CHECK: @fabs_free
; R600-CHECK-NOT: AND
; R600-CHECK: |PV.{{[XYZW]}}|
; SI-CHECK: @fabs_free
; SI-CHECK: V_ADD_F32_e64 VGPR{{[0-9]}}, SGPR{{[0-9]}}, 0, 1, 0, 0, 0
define void @fabs_free(float addrspace(1)* %out, i32 %in) {
entry:
%0 = bitcast i32 %in to float
%1 = call float @fabs(float %0)
store float %1, float addrspace(1)* %out
ret void
}
declare float @fabs(float ) readnone