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llvm-project/llvm/test/CodeGen/PowerPC/memset-nc.ll

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[SDAG] Handle non-integer preferred memset types for non-constant values The existing code in getMemsetValue only handled integer-preferred types when the fill value was not a constant. Make this more robust in two ways: 1. If the preferred type is a floating-point value, do the mul-splat trick on the corresponding integer type and then bitcast. 2. If the preferred type is a vector, do the mul-splat trick on one vector element, and then build a vector out of them. Fixes PR22754 (although, we should also turn off use of vector types at -O0). llvm-svn: 233749
2015-04-01 04:35:26 +08:00
; RUN: llc < %s | FileCheck %s
target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
target triple = "powerpc64-bgq-linux"
; Function Attrs: nounwind
define void @test_qpx() unnamed_addr #0 align 2 {
entry:
%0 = load i32, i32* undef, align 4
%1 = trunc i32 %0 to i8
call void @llvm.memset.p0i8.i64(i8* null, i8 %1, i64 64, i32 32, i1 false)
ret void
; CHECK-LABEL: @test_qpx
; CHECK: qvstfdx
; CHECK: qvstfdx
; CHECK: blr
}
; Function Attrs: nounwind
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) #1
; Function Attrs: nounwind
define void @test_vsx() unnamed_addr #2 align 2 {
entry:
%0 = load i32, i32* undef, align 4
%1 = trunc i32 %0 to i8
call void @llvm.memset.p0i8.i64(i8* null, i8 %1, i64 32, i32 1, i1 false)
ret void
; CHECK-LABEL: @test_vsx
; CHECK: stxvw4x
; CHECK: stxvw4x
; CHECK: blr
}
attributes #0 = { nounwind "target-cpu"="a2q" }
attributes #1 = { nounwind }
attributes #2 = { nounwind "target-cpu"="pwr7" }