[ARMv8] Add CodeGen support for VSEL.

This uses the ARMcmov pattern that Tim cleaned up in r188995.

Thanks to Simon Tatham for his floating point help!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189024 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 309 insertions, 0 deletions

diff --git a/test/CodeGen/ARM/vsel.ll b/test/CodeGen/ARM/vsel.ll
new file mode 100644
index 0000000..f4ee800
--- /dev/null
+++ b/test/CodeGen/ARM/vsel.ll
@@ -0,0 +1,309 @@
+; RUN: llc < %s -mtriple=armv8-linux-gnueabihf -mattr=+v8fp -float-abi=hard | FileCheck %s
+@varfloat = global float 0.0
+@vardouble = global double 0.0
+define void @test_vsel32sgt(i32 %lhs32, i32 %rhs32, float %a, float %b) {
+; CHECK: test_vsel32sgt
+  %tst1 = icmp sgt i32 %lhs32, %rhs32
+  %val1 = select i1 %tst1, float %a, float %b
+  store float %val1, float* @varfloat
+; CHECK: cmp r0, r1
+; CHECK: vselgt.f32 s0, s0, s1
+  ret void
+}
+define void @test_vsel64sgt(i32 %lhs32, i32 %rhs32, double %a, double %b) {
+; CHECK: test_vsel64sgt
+  %tst1 = icmp sgt i32 %lhs32, %rhs32
+  %val1 = select i1 %tst1, double %a, double %b
+  store double %val1, double* @vardouble
+; CHECK: cmp r0, r1
+; CHECK: vselgt.f64 d16, d0, d1
+  ret void
+}
+define void @test_vsel32sge(i32 %lhs32, i32 %rhs32, float %a, float %b) {
+; CHECK: test_vsel32sge
+  %tst1 = icmp sge i32 %lhs32, %rhs32
+  %val1 = select i1 %tst1, float %a, float %b
+  store float %val1, float* @varfloat
+; CHECK: cmp r0, r1
+; CHECK: vselge.f32 s0, s0, s1
+  ret void
+}
+define void @test_vsel64sge(i32 %lhs32, i32 %rhs32, double %a, double %b) {
+; CHECK: test_vsel64sge
+  %tst1 = icmp sge i32 %lhs32, %rhs32
+  %val1 = select i1 %tst1, double %a, double %b
+  store double %val1, double* @vardouble
+; CHECK: cmp r0, r1
+; CHECK: vselge.f64 d16, d0, d1
+  ret void
+}
+define void @test_vsel32eq(i32 %lhs32, i32 %rhs32, float %a, float %b) {
+; CHECK: test_vsel32eq
+  %tst1 = icmp eq i32 %lhs32, %rhs32
+  %val1 = select i1 %tst1, float %a, float %b
+  store float %val1, float* @varfloat
+; CHECK: cmp r0, r1
+; CHECK: vseleq.f32 s0, s0, s1
+  ret void
+}
+define void @test_vsel64eq(i32 %lhs32, i32 %rhs32, double %a, double %b) {
+; CHECK: test_vsel64eq
+  %tst1 = icmp eq i32 %lhs32, %rhs32
+  %val1 = select i1 %tst1, double %a, double %b
+  store double %val1, double* @vardouble
+; CHECK: cmp r0, r1
+; CHECK: vseleq.f64 d16, d0, d1
+  ret void
+}
+define void @test_vsel32slt(i32 %lhs32, i32 %rhs32, float %a, float %b) {
+; CHECK: test_vsel32slt
+  %tst1 = icmp slt i32 %lhs32, %rhs32
+  %val1 = select i1 %tst1, float %a, float %b
+  store float %val1, float* @varfloat
+; CHECK: cmp r0, r1
+; CHECK: vselgt.f32 s0, s1, s0
+  ret void
+}
+define void @test_vsel64slt(i32 %lhs32, i32 %rhs32, double %a, double %b) {
+; CHECK: test_vsel64slt
+  %tst1 = icmp slt i32 %lhs32, %rhs32
+  %val1 = select i1 %tst1, double %a, double %b
+  store double %val1, double* @vardouble
+; CHECK: cmp r0, r1
+; CHECK: vselgt.f64 d16, d1, d0
+  ret void
+}
+define void @test_vsel32sle(i32 %lhs32, i32 %rhs32, float %a, float %b) {
+; CHECK: test_vsel32sle
+  %tst1 = icmp sle i32 %lhs32, %rhs32
+  %val1 = select i1 %tst1, float %a, float %b
+  store float %val1, float* @varfloat
+; CHECK: cmp r0, r1
+; CHECK: vselge.f32 s0, s1, s0
+  ret void
+}
+define void @test_vsel64sle(i32 %lhs32, i32 %rhs32, double %a, double %b) {
+; CHECK: test_vsel64sle
+  %tst1 = icmp sle i32 %lhs32, %rhs32
+  %val1 = select i1 %tst1, double %a, double %b
+  store double %val1, double* @vardouble
+; CHECK: cmp r0, r1
+; CHECK: vselge.f64 d16, d1, d0
+  ret void
+}
+define void @test_vsel32ogt(float %lhs32, float %rhs32, float %a, float %b) {
+; CHECK: test_vsel32ogt
+  %tst1 = fcmp ogt float %lhs32, %rhs32
+  %val1 = select i1 %tst1, float %a, float %b
+  store float %val1, float* @varfloat
+; CHECK: vcmpe.f32 s0, s1
+; CHECK: vselgt.f32 s0, s2, s3
+  ret void
+}
+define void @test_vsel64ogt(float %lhs32, float %rhs32, double %a, double %b) {
+; CHECK: test_vsel64ogt
+  %tst1 = fcmp ogt float %lhs32, %rhs32
+  %val1 = select i1 %tst1, double %a, double %b
+  store double %val1, double* @vardouble
+; CHECK: vcmpe.f32 s0, s1
+; CHECK: vselgt.f64 d16, d1, d2
+  ret void
+}
+define void @test_vsel32oge(float %lhs32, float %rhs32, float %a, float %b) {
+; CHECK: test_vsel32oge
+  %tst1 = fcmp oge float %lhs32, %rhs32
+  %val1 = select i1 %tst1, float %a, float %b
+  store float %val1, float* @varfloat
+; CHECK: vcmpe.f32 s0, s1
+; CHECK: vselge.f32 s0, s2, s3
+  ret void
+}
+define void @test_vsel64oge(float %lhs32, float %rhs32, double %a, double %b) {
+; CHECK: test_vsel64oge
+  %tst1 = fcmp oge float %lhs32, %rhs32
+  %val1 = select i1 %tst1, double %a, double %b
+  store double %val1, double* @vardouble
+; CHECK: vcmpe.f32 s0, s1
+; CHECK: vselge.f64 d16, d1, d2
+  ret void
+}
+define void @test_vsel32oeq(float %lhs32, float %rhs32, float %a, float %b) {
+; CHECK: test_vsel32oeq
+  %tst1 = fcmp oeq float %lhs32, %rhs32
+  %val1 = select i1 %tst1, float %a, float %b
+  store float %val1, float* @varfloat
+; CHECK: vcmpe.f32 s0, s1
+; CHECK: vseleq.f32 s0, s2, s3
+  ret void
+}
+define void @test_vsel64oeq(float %lhs32, float %rhs32, double %a, double %b) {
+; CHECK: test_vsel64oeq
+  %tst1 = fcmp oeq float %lhs32, %rhs32
+  %val1 = select i1 %tst1, double %a, double %b
+  store double %val1, double* @vardouble
+; CHECK: vcmpe.f32 s0, s1
+; CHECK: vseleq.f64 d16, d1, d2
+  ret void
+}
+define void @test_vsel32ugt(float %lhs32, float %rhs32, float %a, float %b) {
+; CHECK: test_vsel32ugt
+  %tst1 = fcmp ugt float %lhs32, %rhs32
+  %val1 = select i1 %tst1, float %a, float %b
+  store float %val1, float* @varfloat
+; CHECK: vcmpe.f32 s1, s0
+; CHECK: vselge.f32 s0, s3, s2
+  ret void
+}
+define void @test_vsel64ugt(float %lhs32, float %rhs32, double %a, double %b) {
+; CHECK: test_vsel64ugt
+  %tst1 = fcmp ugt float %lhs32, %rhs32
+  %val1 = select i1 %tst1, double %a, double %b
+  store double %val1, double* @vardouble
+; CHECK: vcmpe.f32 s1, s0
+; CHECK: vselge.f64 d16, d2, d1
+  ret void
+}
+define void @test_vsel32uge(float %lhs32, float %rhs32, float %a, float %b) {
+; CHECK: test_vsel32uge
+  %tst1 = fcmp uge float %lhs32, %rhs32
+  %val1 = select i1 %tst1, float %a, float %b
+  store float %val1, float* @varfloat
+; CHECK: vcmpe.f32 s1, s0
+; CHECK: vselgt.f32 s0, s3, s2
+  ret void
+}
+define void @test_vsel64uge(float %lhs32, float %rhs32, double %a, double %b) {
+; CHECK: test_vsel64uge
+  %tst1 = fcmp uge float %lhs32, %rhs32
+  %val1 = select i1 %tst1, double %a, double %b
+  store double %val1, double* @vardouble
+; CHECK: vcmpe.f32 s1, s0
+; CHECK: vselgt.f64 d16, d2, d1
+  ret void
+}
+define void @test_vsel32olt(float %lhs32, float %rhs32, float %a, float %b) {
+; CHECK: test_vsel32olt
+  %tst1 = fcmp olt float %lhs32, %rhs32
+  %val1 = select i1 %tst1, float %a, float %b
+  store float %val1, float* @varfloat
+; CHECK: vcmpe.f32 s1, s0
+; CHECK: vselgt.f32 s0, s2, s3
+  ret void
+}
+define void @test_vsel64olt(float %lhs32, float %rhs32, double %a, double %b) {
+; CHECK: test_vsel64olt
+  %tst1 = fcmp olt float %lhs32, %rhs32
+  %val1 = select i1 %tst1, double %a, double %b
+  store double %val1, double* @vardouble
+; CHECK: vcmpe.f32 s1, s0
+; CHECK: vselgt.f64 d16, d1, d2
+  ret void
+}
+define void @test_vsel32ult(float %lhs32, float %rhs32, float %a, float %b) {
+; CHECK: test_vsel32ult
+  %tst1 = fcmp ult float %lhs32, %rhs32
+  %val1 = select i1 %tst1, float %a, float %b
+  store float %val1, float* @varfloat
+; CHECK: vcmpe.f32 s0, s1
+; CHECK: vselge.f32 s0, s3, s2
+  ret void
+}
+define void @test_vsel64ult(float %lhs32, float %rhs32, double %a, double %b) {
+; CHECK: test_vsel64ult
+  %tst1 = fcmp ult float %lhs32, %rhs32
+  %val1 = select i1 %tst1, double %a, double %b
+  store double %val1, double* @vardouble
+; CHECK: vcmpe.f32 s0, s1
+; CHECK: vselge.f64 d16, d2, d1
+  ret void
+}
+define void @test_vsel32ole(float %lhs32, float %rhs32, float %a, float %b) {
+; CHECK: test_vsel32ole
+  %tst1 = fcmp ole float %lhs32, %rhs32
+  %val1 = select i1 %tst1, float %a, float %b
+  store float %val1, float* @varfloat
+; CHECK: vcmpe.f32 s1, s0
+; CHECK: vselge.f32 s0, s2, s3
+  ret void
+}
+define void @test_vsel64ole(float %lhs32, float %rhs32, double %a, double %b) {
+; CHECK: test_vsel64ole
+  %tst1 = fcmp ole float %lhs32, %rhs32
+  %val1 = select i1 %tst1, double %a, double %b
+  store double %val1, double* @vardouble
+; CHECK: vcmpe.f32 s1, s0
+; CHECK: vselge.f64 d16, d1, d2
+  ret void
+}
+define void @test_vsel32ule(float %lhs32, float %rhs32, float %a, float %b) {
+; CHECK: test_vsel32ule
+  %tst1 = fcmp ule float %lhs32, %rhs32
+  %val1 = select i1 %tst1, float %a, float %b
+  store float %val1, float* @varfloat
+; CHECK: vcmpe.f32 s0, s1
+; CHECK: vselgt.f32 s0, s3, s2
+  ret void
+}
+define void @test_vsel64ule(float %lhs32, float %rhs32, double %a, double %b) {
+; CHECK: test_vsel64ule
+  %tst1 = fcmp ule float %lhs32, %rhs32
+  %val1 = select i1 %tst1, double %a, double %b
+  store double %val1, double* @vardouble
+; CHECK: vcmpe.f32 s0, s1
+; CHECK: vselgt.f64 d16, d2, d1
+  ret void
+}
+define void @test_vsel32ord(float %lhs32, float %rhs32, float %a, float %b) {
+; CHECK: test_vsel32ord
+  %tst1 = fcmp ord float %lhs32, %rhs32
+  %val1 = select i1 %tst1, float %a, float %b
+  store float %val1, float* @varfloat
+; CHECK: vcmpe.f32 s0, s1
+; CHECK: vselvs.f32 s0, s3, s2
+  ret void
+}
+define void @test_vsel64ord(float %lhs32, float %rhs32, double %a, double %b) {
+; CHECK: test_vsel64ord
+  %tst1 = fcmp ord float %lhs32, %rhs32
+  %val1 = select i1 %tst1, double %a, double %b
+  store double %val1, double* @vardouble
+; CHECK: vcmpe.f32 s0, s1
+; CHECK: vselvs.f64 d16, d2, d1
+  ret void
+}
+define void @test_vsel32une(float %lhs32, float %rhs32, float %a, float %b) {
+; CHECK: test_vsel32une
+  %tst1 = fcmp une float %lhs32, %rhs32
+  %val1 = select i1 %tst1, float %a, float %b
+  store float %val1, float* @varfloat
+; CHECK: vcmpe.f32 s0, s1
+; CHECK: vseleq.f32 s0, s3, s2
+  ret void
+}
+define void @test_vsel64une(float %lhs32, float %rhs32, double %a, double %b) {
+; CHECK: test_vsel64une
+  %tst1 = fcmp une float %lhs32, %rhs32
+  %val1 = select i1 %tst1, double %a, double %b
+  store double %val1, double* @vardouble
+; CHECK: vcmpe.f32 s0, s1
+; CHECK: vseleq.f64 d16, d2, d1
+  ret void
+}
+define void @test_vsel32uno(float %lhs32, float %rhs32, float %a, float %b) {
+; CHECK: test_vsel32uno
+  %tst1 = fcmp uno float %lhs32, %rhs32
+  %val1 = select i1 %tst1, float %a, float %b
+  store float %val1, float* @varfloat
+; CHECK: vcmpe.f32 s0, s1
+; CHECK: vselvs.f32 s0, s2, s3
+  ret void
+}
+define void @test_vsel64uno(float %lhs32, float %rhs32, double %a, double %b) {
+; CHECK: test_vsel64uno
+  %tst1 = fcmp uno float %lhs32, %rhs32
+  %val1 = select i1 %tst1, double %a, double %b
+  store double %val1, double* @vardouble
+; CHECK: vcmpe.f32 s0, s1
+; CHECK: vselvs.f64 d16, d1, d2
+  ret void
+}