Reapply r155682, making constant folding more consistent, with a fix to work

[oota-llvm.git] / test / CodeGen / ARM / fcopysign.ll

diff --git a/test/CodeGen/ARM/fcopysign.ll b/test/CodeGen/ARM/fcopysign.ll
index b384f36a5c14fe949a092e23b853515f4d3275e0..27fa2b093d8984cbb74cc2f12b560b6d20f38396 100644 (file)
--- a/test/CodeGen/ARM/fcopysign.ll
+++ b/test/CodeGen/ARM/fcopysign.ll
@@ -1,19 +1,60 @@
-; RUN: llvm-as < %s | llc -march=arm &&
-; RUN: llvm-as < %s | llc -march=arm | grep bic | wc -l | grep 2 &&
-; RUN: llvm-as < %s | llc -march=arm -mattr=+v6,+vfp2 &&
-; RUN: llvm-as < %s | llc -march=arm -mattr=+v6,+vfp2 | grep fneg | wc -l | grep 2
+; RUN: llc < %s -disable-post-ra -mtriple=armv7-apple-darwin -mcpu=cortex-a8 | FileCheck %s -check-prefix=SOFT
+; RUN: llc < %s -disable-post-ra -mtriple=armv7-gnueabi -float-abi=hard -mcpu=cortex-a8 | FileCheck %s -check-prefix=HARD
 
-define float @test1(float %x, double %y) {
-       %tmp = fpext float %x to double
-       %tmp2 = tail call double @copysign( double %tmp, double %y )
-       %tmp3 = fptrunc double %tmp2 to float
-       ret float %tmp3
+; rdar://8984306
+define float @test1(float %x, float %y) nounwind {
+entry:
+; SOFT: test1:
+; SOFT: lsr r1, r1, #31
+; SOFT: bfi r0, r1, #31, #1
+
+; HARD: test1:
+; HARD: vmov.i32 [[REG1:(d[0-9]+)]], #0x80000000
+; HARD: vbsl [[REG1]], d
+  %0 = tail call float @copysignf(float %x, float %y) nounwind
+  ret float %0
+}
+
+define double @test2(double %x, double %y) nounwind {
+entry:
+; SOFT: test2:
+; SOFT: lsr r2, r3, #31
+; SOFT: bfi r1, r2, #31, #1
+
+; HARD: test2:
+; HARD: vmov.i32 [[REG2:(d[0-9]+)]], #0x80000000
+; HARD: vshl.i64 [[REG2]], [[REG2]], #32
+; HARD: vbsl [[REG2]], d1, d0
+  %0 = tail call double @copysign(double %x, double %y) nounwind
+  ret double %0
+}
+
+define double @test3(double %x, double %y, double %z) nounwind {
+entry:
+; SOFT: test3:
+; SOFT: vmov.i32 [[REG3:(d[0-9]+)]], #0x80000000
+; SOFT: vshl.i64 [[REG3]], [[REG3]], #32
+; SOFT: vbsl [[REG3]],
+  %0 = fmul double %x, %y
+  %1 = tail call double @copysign(double %0, double %z) nounwind
+  ret double %1
 }
 
-define double @test2(double %x, float %y) {
-       %tmp = fpext float %y to double
-       %tmp2 = tail call double @copysign( double %x, double %tmp )
-       ret double %tmp2
+; rdar://9287902
+define float @test4() nounwind {
+entry:
+; SOFT: test4:
+; SOFT: vmov [[REG7:(d[0-9]+)]], r0, r1
+; SOFT: vmov.i32 [[REG6:(d[0-9]+)]], #0x80000000
+; SOFT: vshr.u64 [[REG7]], [[REG7]], #32
+; SOFT: vbsl [[REG6]], [[REG7]], 
+  %0 = tail call double (...)* @bar() nounwind
+  %1 = fptrunc double %0 to float
+  %2 = tail call float @copysignf(float 5.000000e-01, float %1) nounwind readnone
+  %3 = fadd float %1, %2
+  ret float %3
 }
 
-declare double @copysign(double, double)
+declare double @bar(...)
+declare double @copysign(double, double) nounwind
+declare float @copysignf(float, float) nounwind