It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/fabs.ll b/test/CodeGen/X86/fabs.ll
new file mode 100644
index 0000000..dd94613
--- /dev/null
+++ b/test/CodeGen/X86/fabs.ll
@@ -0,0 +1,24 @@
+; Make sure this testcase codegens to the fabs instruction, not a call to fabsf
+; RUN: llvm-upgrade < %s | llvm-as | llc -march=x86 -mattr=-sse2,-sse3 | \
+; RUN: grep fabs\$ | wc -l | grep 1
+; RUN: llvm-upgrade < %s | llvm-as | \
+; RUN: llc -march=x86 -mattr=-sse2,-sse3 -enable-unsafe-fp-math | \
+; RUN: grep fabs\$ | wc -l | grep 2
+
+target endian = little
+target pointersize = 32
+
+declare float %fabsf(float)
+
+float %test1(float %X) {
+ %Y = call float %fabsf(float %X)
+ ret float %Y
+}
+
+double %test2(double %X) {
+ %Y = setge double %X, -0.0
+ %Z = sub double -0.0, %X
+ %Q = select bool %Y, double %X, double %Z
+ ret double %Q
+}
+