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This patch corresponds to review: https://reviews.llvm.org/D21354 We use direct moves for extracting integer elements from vectors. We also use direct moves when converting integers to FP. When these operations are chained, we get a direct move out of a VSR followed by a direct move back into a VSR. These are redundant - all we need to do is line up the element and convert. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@275796 91177308-0d34-0410-b5e6-96231b3b80d8
108 lines
2.7 KiB
LLVM
108 lines
2.7 KiB
LLVM
; RUN: llc -mcpu=pwr8 -mtriple=powerpc64le-unknown-linux-gnu \
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; RUN: -verify-machineinstrs < %s | FileCheck %s
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; RUN: llc -mcpu=pwr8 -mtriple=powerpc64-unknown-linux-gnu \
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; RUN: -verify-machineinstrs < %s | FileCheck %s --check-prefix=CHECK-BE
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define double @test1(<2 x i64> %a) {
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entry:
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; CHECK-LABEL: test1
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; CHECK: xxswapd [[SW:[0-9]+]], 34
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; CHECK: xscvsxddp 1, [[SW]]
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; CHECK-BE-LABEL: test1
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; CHECK-BE: xxlor [[CP:[0-9]+]], 34, 34
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; CHECK-BE: xscvsxddp 1, [[CP]]
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%0 = extractelement <2 x i64> %a, i32 0
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%1 = sitofp i64 %0 to double
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ret double %1
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}
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define double @test2(<2 x i64> %a) {
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entry:
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; CHECK-LABEL: test2
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; CHECK: xxlor [[CP:[0-9]+]], 34, 34
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; CHECK: xscvsxddp 1, [[CP]]
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; CHECK-BE-LABEL: test2
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; CHECK-BE: xxswapd [[SW:[0-9]+]], 34
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; CHECK-BE: xscvsxddp 1, [[SW]]
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%0 = extractelement <2 x i64> %a, i32 1
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%1 = sitofp i64 %0 to double
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ret double %1
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}
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define float @test1f(<2 x i64> %a) {
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entry:
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; CHECK-LABEL: test1f
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; CHECK: xxswapd [[SW:[0-9]+]], 34
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; CHECK: xscvsxdsp 1, [[SW]]
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; CHECK-BE-LABEL: test1f
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; CHECK-BE: xxlor [[CP:[0-9]+]], 34, 34
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; CHECK-BE: xscvsxdsp 1, [[CP]]
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%0 = extractelement <2 x i64> %a, i32 0
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%1 = sitofp i64 %0 to float
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ret float %1
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}
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define float @test2f(<2 x i64> %a) {
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entry:
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; CHECK-LABEL: test2f
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; CHECK: xxlor [[CP:[0-9]+]], 34, 34
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; CHECK: xscvsxdsp 1, [[CP]]
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; CHECK-BE-LABEL: test2f
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; CHECK-BE: xxswapd [[SW:[0-9]+]], 34
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; CHECK-BE: xscvsxdsp 1, [[SW]]
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%0 = extractelement <2 x i64> %a, i32 1
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%1 = sitofp i64 %0 to float
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ret float %1
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}
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define double @test1u(<2 x i64> %a) {
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entry:
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; CHECK-LABEL: test1u
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; CHECK: xxswapd [[SW:[0-9]+]], 34
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; CHECK: xscvuxddp 1, [[SW]]
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; CHECK-BE-LABEL: test1u
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; CHECK-BE: xxlor [[CP:[0-9]+]], 34, 34
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; CHECK-BE: xscvuxddp 1, [[CP]]
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%0 = extractelement <2 x i64> %a, i32 0
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%1 = uitofp i64 %0 to double
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ret double %1
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}
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define double @test2u(<2 x i64> %a) {
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entry:
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; CHECK-LABEL: test2u
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; CHECK: xxlor [[CP:[0-9]+]], 34, 34
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; CHECK: xscvuxddp 1, [[CP]]
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; CHECK-BE-LABEL: test2u
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; CHECK-BE: xxswapd [[SW:[0-9]+]], 34
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; CHECK-BE: xscvuxddp 1, [[SW]]
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%0 = extractelement <2 x i64> %a, i32 1
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%1 = uitofp i64 %0 to double
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ret double %1
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}
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define float @test1fu(<2 x i64> %a) {
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entry:
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; CHECK-LABEL: test1fu
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; CHECK: xxswapd [[SW:[0-9]+]], 34
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; CHECK: xscvuxdsp 1, [[SW]]
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; CHECK-BE-LABEL: test1fu
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; CHECK-BE: xxlor [[CP:[0-9]+]], 34, 34
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; CHECK-BE: xscvuxdsp 1, [[CP]]
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%0 = extractelement <2 x i64> %a, i32 0
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%1 = uitofp i64 %0 to float
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ret float %1
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}
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define float @test2fu(<2 x i64> %a) {
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entry:
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; CHECK-LABEL: test2fu
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; CHECK: xxlor [[CP:[0-9]+]], 34, 34
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; CHECK: xscvuxdsp 1, [[CP]]
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; CHECK-BE-LABEL: test2fu
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; CHECK-BE: xxswapd [[SW:[0-9]+]], 34
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; CHECK-BE: xscvuxdsp 1, [[SW]]
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%0 = extractelement <2 x i64> %a, i32 1
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%1 = uitofp i64 %0 to float
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ret float %1
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}
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