mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-09-30 19:55:11 +00:00
e9c0b5aba6
This patch teaches the DAGCombiner how to fold a sext/aext/zext dag node when the operand in input is a build vector of constants (or UNDEFs). The inability to fold a sext/zext of a constant build_vector was the root cause of some pcg bugs affecting vselect expansion on x86-64 with AVX support. Before this change, the DAGCombiner only knew how to fold a sext/zext/aext of a ConstantSDNode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200234 91177308-0d34-0410-b5e6-96231b3b80d8
116 lines
3.4 KiB
LLVM
116 lines
3.4 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7-avx -mattr=+avx | FileCheck %s
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; AVX128 tests:
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;CHECK-LABEL: vsel_float:
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;CHECK: vblendvps
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;CHECK: ret
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define <4 x float> @vsel_float(<4 x float> %v1, <4 x float> %v2) {
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%vsel = select <4 x i1> <i1 true, i1 false, i1 true, i1 false>, <4 x float> %v1, <4 x float> %v2
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ret <4 x float> %vsel
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}
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;CHECK-LABEL: vsel_i32:
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;CHECK: vblendvps
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;CHECK: ret
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define <4 x i32> @vsel_i32(<4 x i32> %v1, <4 x i32> %v2) {
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%vsel = select <4 x i1> <i1 true, i1 false, i1 true, i1 false>, <4 x i32> %v1, <4 x i32> %v2
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ret <4 x i32> %vsel
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}
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;CHECK-LABEL: vsel_double:
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;CHECK: vmovsd
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;CHECK: ret
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define <2 x double> @vsel_double(<2 x double> %v1, <2 x double> %v2) {
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%vsel = select <2 x i1> <i1 true, i1 false>, <2 x double> %v1, <2 x double> %v2
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ret <2 x double> %vsel
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}
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;CHECK-LABEL: vsel_i64:
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;CHECK: vmovsd
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;CHECK: ret
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define <2 x i64> @vsel_i64(<2 x i64> %v1, <2 x i64> %v2) {
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%vsel = select <2 x i1> <i1 true, i1 false>, <2 x i64> %v1, <2 x i64> %v2
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ret <2 x i64> %vsel
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}
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;CHECK-LABEL: vsel_i8:
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;CHECK: vpblendvb
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;CHECK: ret
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define <16 x i8> @vsel_i8(<16 x i8> %v1, <16 x i8> %v2) {
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%vsel = select <16 x i1> <i1 true, i1 false, i1 false, i1 false, i1 true, i1 false, i1 false, i1 false, i1 true, i1 false, i1 false, i1 false, i1 true, i1 false, i1 false, i1 false>, <16 x i8> %v1, <16 x i8> %v2
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ret <16 x i8> %vsel
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}
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; AVX256 tests:
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;CHECK-LABEL: vsel_float8:
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;CHECK-NOT: vinsertf128
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;CHECK: vblendvps
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;CHECK: ret
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define <8 x float> @vsel_float8(<8 x float> %v1, <8 x float> %v2) {
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%vsel = select <8 x i1> <i1 true, i1 false, i1 false, i1 false, i1 true, i1 false, i1 false, i1 false>, <8 x float> %v1, <8 x float> %v2
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ret <8 x float> %vsel
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}
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;CHECK-LABEL: vsel_i328:
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;CHECK-NOT: vinsertf128
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;CHECK: vblendvps
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;CHECK-NEXT: ret
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define <8 x i32> @vsel_i328(<8 x i32> %v1, <8 x i32> %v2) {
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%vsel = select <8 x i1> <i1 true, i1 false, i1 false, i1 false, i1 true, i1 false, i1 false, i1 false>, <8 x i32> %v1, <8 x i32> %v2
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ret <8 x i32> %vsel
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}
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;CHECK-LABEL: vsel_double8:
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;CHECK: vblendvpd
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;CHECK: ret
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define <8 x double> @vsel_double8(<8 x double> %v1, <8 x double> %v2) {
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%vsel = select <8 x i1> <i1 true, i1 false, i1 false, i1 false, i1 true, i1 false, i1 false, i1 false>, <8 x double> %v1, <8 x double> %v2
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ret <8 x double> %vsel
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}
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;CHECK-LABEL: vsel_i648:
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;CHECK: vblendvpd
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;CHECK: ret
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define <8 x i64> @vsel_i648(<8 x i64> %v1, <8 x i64> %v2) {
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%vsel = select <8 x i1> <i1 true, i1 false, i1 false, i1 false, i1 true, i1 false, i1 false, i1 false>, <8 x i64> %v1, <8 x i64> %v2
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ret <8 x i64> %vsel
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}
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;CHECK-LABEL: vsel_double4:
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;CHECK-NOT: vinsertf128
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;CHECK: vblendvpd
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;CHECK-NEXT: ret
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define <4 x double> @vsel_double4(<4 x double> %v1, <4 x double> %v2) {
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%vsel = select <4 x i1> <i1 true, i1 false, i1 true, i1 false>, <4 x double> %v1, <4 x double> %v2
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ret <4 x double> %vsel
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}
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;; TEST blend + compares
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; CHECK: testa
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define <2 x double> @testa(<2 x double> %x, <2 x double> %y) {
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; CHECK: vcmplepd
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; CHECK: vblendvpd
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%max_is_x = fcmp oge <2 x double> %x, %y
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%max = select <2 x i1> %max_is_x, <2 x double> %x, <2 x double> %y
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ret <2 x double> %max
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}
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; CHECK: testb
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define <2 x double> @testb(<2 x double> %x, <2 x double> %y) {
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; CHECK: vcmpnlepd
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; CHECK: vblendvpd
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%min_is_x = fcmp ult <2 x double> %x, %y
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%min = select <2 x i1> %min_is_x, <2 x double> %x, <2 x double> %y
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ret <2 x double> %min
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}
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