Fix a broadcast related regression on the vector shuffle lowering.

[oota-llvm.git] / test / CodeGen / X86 / stack-align.ll

diff --git a/test/CodeGen/X86/stack-align.ll b/test/CodeGen/X86/stack-align.ll
index 1e6c2b2af06001e67b4a7d7c0517f2772b35fcb2..eafb7c29fa0aaa3a562d8d307a1948fa19ef1423 100644 (file)
--- a/test/CodeGen/X86/stack-align.ll
+++ b/test/CodeGen/X86/stack-align.ll
@@ -1,4 +1,4 @@
-; RUN: llvm-as < %s | llc -relocation-model=static -mcpu=yonah | grep {andpd.*4(%esp), %xmm}
+; RUN: llc < %s -relocation-model=static -mcpu=yonah | FileCheck %s
 
 ; The double argument is at 4(esp) which is 16-byte aligned, allowing us to
 ; fold the load into the andpd.
@@ -7,16 +7,45 @@ target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f3
 target triple = "i686-apple-darwin8"
 @G = external global double
 
-define void @test({ double, double }* byval  %z, double* %P) {
+define void @test({ double, double }* byval  %z, double* %P) nounwind {
 entry:
-       %tmp = getelementptr { double, double }* %z, i32 0, i32 0               ; <double*> [#uses=1]
-       %tmp1 = load double* %tmp, align 8              ; <double> [#uses=1]
-       %tmp2 = tail call double @fabs( double %tmp1 )          ; <double> [#uses=1]
        %tmp3 = load double* @G, align 16               ; <double> [#uses=1]
-       %tmp4 = tail call double @fabs( double %tmp3 )          ; <double> [#uses=1]
-       %tmp6 = add double %tmp4, %tmp2         ; <double> [#uses=1]
-       store double %tmp6, double* %P, align 8
+       %tmp4 = tail call double @fabs( double %tmp3 ) readnone ; <double> [#uses=1]
+        store volatile double %tmp4, double* %P
+       %tmp = getelementptr { double, double }* %z, i32 0, i32 0               ; <double*> [#uses=1]
+       %tmp1 = load volatile double* %tmp, align 8             ; <double> [#uses=1]
+       %tmp2 = tail call double @fabs( double %tmp1 ) readnone ; <double> [#uses=1]
+    ; CHECK: andpd{{.*}}4(%esp), %xmm
+       %tmp6 = fadd double %tmp4, %tmp2                ; <double> [#uses=1]
+       store volatile double %tmp6, double* %P, align 8
        ret void
 }
 
+define void @test2() alignstack(16) nounwind {
+entry:
+    ; CHECK: andl{{.*}}$-16, %esp
+    ret void
+}
+
+; Use a call to force a spill.
+define <2 x double> @test3(<2 x double> %x, <2 x double> %y) alignstack(32) nounwind {
+entry:
+    ; CHECK: andl{{.*}}$-32, %esp
+    call void @test2()
+    %A = fmul <2 x double> %x, %y
+    ret <2 x double> %A
+}
+
 declare double @fabs(double)
+
+; The pointer is already known aligned, so and x,-16 is eliminable.
+define i32 @test4() nounwind {
+entry:
+  %buffer = alloca [2048 x i8], align 16
+  %0 = ptrtoint [2048 x i8]* %buffer to i32
+  %and = and i32 %0, -16
+  ret i32 %and
+; CHECK-LABEL: test4:
+; CHECK-NOT: and
+; CHECK: ret
+}