mirror of
https://github.com/RPCSX/llvm.git
synced 2024-12-13 14:46:53 +00:00
40 lines
1.4 KiB
LLVM
40 lines
1.4 KiB
LLVM
|
; RUN: opt -instcombine -S < %s | FileCheck %s
|
||
|
|
|
||
|
|
; CHECK-LABEL: test_scalarize_phi
|
||
|
|
; CHECK: fmul fast float
|
||
|
|
define void @test_scalarize_phi(i32 * %n, float * %inout) {
|
||
|
|
entry:
|
||
|
|
%0 = load volatile float, float * %inout, align 4
|
||
|
|
%splat.splatinsert = insertelement <4 x float> undef, float %0, i32 0
|
||
|
|
%splat.splat = shufflevector <4 x float> %splat.splatinsert, <4 x float> undef, <4 x i32> zeroinitializer
|
||
|
|
%splat.splatinsert1 = insertelement <4 x float> undef, float 3.0, i32 0
|
||
|
|
br label %for.cond
|
||
|
|
|
||
|
|
for.cond:
|
||
|
|
%x.0 = phi <4 x float> [ %splat.splat, %entry ], [ %mul, %for.body ]
|
||
|
|
%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
|
||
|
|
%1 = load i32, i32 * %n, align 4
|
||
|
|
%cmp = icmp ne i32 %i.0, %1
|
||
|
|
br i1 %cmp, label %for.body, label %for.end
|
||
|
|
|
||
|
|
for.body:
|
||
|
|
%2 = extractelement <4 x float> %x.0, i32 1
|
||
|
|
store volatile float %2, float * %inout, align 4
|
||
|
|
%mul = fmul fast <4 x float> %x.0, <float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000>
|
||
|
|
%inc = add nsw i32 %i.0, 1
|
||
|
|
br label %for.cond
|
||
|
|
|
||
|
|
for.end:
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; CHECK-LABEL: test_extract_element_fastmath
|
||
|
|
; CHECK: fadd fast float
|
||
|
|
define float @test_extract_element_fastmath(<4 x float> %x) #0 {
|
||
|
|
entry:
|
||
|
|
%add = fadd fast <4 x float> %x, <float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000>
|
||
|
|
%0 = extractelement <4 x float> %add, i32 2
|
||
|
|
ret float %0
|
||
|
|
}
|
||
|
|
|