CodeGen peephole: fold redundant phys reg copies

[oota-llvm.git] / test / CodeGen / X86 / fp-fast.ll

diff --git a/test/CodeGen/X86/fp-fast.ll b/test/CodeGen/X86/fp-fast.ll
index 4f503af716a80baf98e99827a00c23bf47f19105..fa31b9c9e12853de1f4266a161aeb98bec32552d 100644 (file)
--- a/test/CodeGen/X86/fp-fast.ll
+++ b/test/CodeGen/X86/fp-fast.ll
@@ -1,3 +1,4 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=avx -enable-unsafe-fp-math < %s | FileCheck %s
 
 define float @test1(float %a) {
@@ -114,81 +115,3 @@ define float @test11(float %a) {
   ret float %t2
 }
 
-; Verify that the first two adds are independent regardless of how the inputs are 
-; commuted. The destination registers are used as source registers for the third add.
-
-define float @reassociate_adds1(float %x0, float %x1, float %x2, float %x3) {
-; CHECK-LABEL: reassociate_adds1:
-; CHECK:       # BB#0:
-; CHECK-NEXT:    vaddss %xmm1, %xmm0, %xmm0
-; CHECK-NEXT:    vaddss %xmm3, %xmm2, %xmm1
-; CHECK-NEXT:    vaddss %xmm1, %xmm0, %xmm0
-; CHECK-NEXT:    retq
-  %t0 = fadd float %x0, %x1
-  %t1 = fadd float %t0, %x2
-  %t2 = fadd float %t1, %x3
-  ret float %t2
-}
-
-define float @reassociate_adds2(float %x0, float %x1, float %x2, float %x3) {
-; CHECK-LABEL: reassociate_adds2:
-; CHECK:       # BB#0:
-; CHECK-NEXT:    vaddss %xmm1, %xmm0, %xmm0
-; CHECK-NEXT:    vaddss %xmm3, %xmm2, %xmm1
-; CHECK-NEXT:    vaddss %xmm1, %xmm0, %xmm0
-; CHECK-NEXT:    retq
-  %t0 = fadd float %x0, %x1
-  %t1 = fadd float %x2, %t0
-  %t2 = fadd float %t1, %x3
-  ret float %t2
-}
-
-define float @reassociate_adds3(float %x0, float %x1, float %x2, float %x3) {
-; CHECK-LABEL: reassociate_adds3:
-; CHECK:       # BB#0:
-; CHECK-NEXT:    vaddss %xmm1, %xmm0, %xmm0
-; CHECK-NEXT:    vaddss %xmm3, %xmm2, %xmm1
-; CHECK-NEXT:    vaddss %xmm1, %xmm0, %xmm0
-; CHECK-NEXT:    retq
-  %t0 = fadd float %x0, %x1
-  %t1 = fadd float %t0, %x2
-  %t2 = fadd float %x3, %t1
-  ret float %t2
-}
-
-define float @reassociate_adds4(float %x0, float %x1, float %x2, float %x3) {
-; CHECK-LABEL: reassociate_adds4:
-; CHECK:       # BB#0:
-; CHECK-NEXT:    vaddss %xmm1, %xmm0, %xmm0
-; CHECK-NEXT:    vaddss %xmm3, %xmm2, %xmm1
-; CHECK-NEXT:    vaddss %xmm1, %xmm0, %xmm0
-; CHECK-NEXT:    retq
-  %t0 = fadd float %x0, %x1
-  %t1 = fadd float %x2, %t0
-  %t2 = fadd float %x3, %t1
-  ret float %t2
-}
-
-; Verify that we reassociate some of these ops. The optimal balanced tree of adds is not
-; produced because that would cost more compile time.
-
-define float @reassociate_adds5(float %x0, float %x1, float %x2, float %x3, float %x4, float %x5, float %x6, float %x7) {
-; CHECK-LABEL: reassociate_adds5:
-; CHECK:       # BB#0:
-; CHECK-NEXT:    vaddss %xmm1, %xmm0, %xmm0
-; CHECK-NEXT:    vaddss %xmm3, %xmm2, %xmm1
-; CHECK-NEXT:    vaddss %xmm1, %xmm0, %xmm0
-; CHECK-NEXT:    vaddss %xmm5, %xmm4, %xmm1
-; CHECK-NEXT:    vaddss %xmm1, %xmm0, %xmm0
-; CHECK-NEXT:    vaddss %xmm7, %xmm6, %xmm1
-; CHECK-NEXT:    vaddss %xmm1, %xmm0, %xmm0
-; CHECK-NEXT:    retq
-  %t0 = fadd float %x0, %x1
-  %t1 = fadd float %t0, %x2
-  %t2 = fadd float %t1, %x3
-  %t3 = fadd float %t2, %x4
-  %t4 = fadd float %t3, %x5
-  %t5 = fadd float %t4, %x6
-  %t6 = fadd float %t5, %x7
-  ret float %t6
-}