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llvm-mirror/test/CodeGen/AMDGPU/si-literal-folding.ll
Matt Arsenault 33e593fd71 AMDGPU: Fix immediate folding logic when shrinking instructions
If the literal is being folded into src0, it doesn't matter
if it's an SGPR because it's being replaced with the literal.

Also fixes initially selecting 32-bit versions of some instructions
which also confused commuting.

llvm-svn: 281117
2016-09-09 23:32:53 +00:00

15 lines
557 B
LLVM

; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
; GCN-LABEL: {{^}}main:
; GCN: v_mul_f32_e32 v{{[0-9]+}}, 0x3f4353f8, v{{[0-9]+}}
; GCN: v_mul_f32_e32 v{{[0-9]+}}, 0xbf4353f8, v{{[0-9]+}}
define amdgpu_vs void @main(float) {
main_body:
%1 = fmul float %0, 0x3FE86A7F00000000
%2 = fmul float %0, 0xBFE86A7F00000000
call void @llvm.SI.export(i32 15, i32 0, i32 1, i32 12, i32 0, float %1, float %1, float %2, float %2)
ret void
}
declare void @llvm.SI.export(i32, i32, i32, i32, i32, float, float, float, float)