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Diffstat (limited to 'test/CodeGen/X86/sink-hoist.ll')
-rw-r--r--test/CodeGen/X86/sink-hoist.ll29
1 files changed, 24 insertions, 5 deletions
diff --git a/test/CodeGen/X86/sink-hoist.ll b/test/CodeGen/X86/sink-hoist.ll
index acba5288c0d1..31f41eebc5aa 100644
--- a/test/CodeGen/X86/sink-hoist.ll
+++ b/test/CodeGen/X86/sink-hoist.ll
@@ -6,10 +6,11 @@
; that it's conditionally evaluated.
; CHECK: foo:
-; CHECK: divsd
; CHECK-NEXT: testb $1, %dil
-; CHECK-NEXT: jne
+; CHECK-NEXT: je
; CHECK-NEXT: divsd
+; CHECK-NEXT: ret
+; CHECK: divsd
define double @foo(double %x, double %y, i1 %c) nounwind {
%a = fdiv double %x, 3.2
@@ -18,6 +19,24 @@ define double @foo(double %x, double %y, i1 %c) nounwind {
ret double %z
}
+; Make sure the critical edge is broken so the divsd is sunken below
+; the conditional branch.
+; rdar://8454886
+
+; CHECK: split:
+; CHECK-NEXT: testb $1, %dil
+; CHECK-NEXT: je
+; CHECK-NEXT: divsd
+; CHECK-NEXT: ret
+; CHECK: movaps
+; CHECK-NEXT: ret
+define double @split(double %x, double %y, i1 %c) nounwind {
+ %a = fdiv double %x, 3.2
+ %z = select i1 %c, double %a, double %y
+ ret double %z
+}
+
+
; Hoist floating-point constant-pool loads out of loops.
; CHECK: bar:
@@ -68,9 +87,9 @@ return:
; Codegen should hoist and CSE these constants.
; CHECK: vv:
-; CHECK: LCPI2_0(%rip), %xmm0
-; CHECK: LCPI2_1(%rip), %xmm1
-; CHECK: LCPI2_2(%rip), %xmm2
+; CHECK: LCPI3_0(%rip), %xmm0
+; CHECK: LCPI3_1(%rip), %xmm1
+; CHECK: LCPI3_2(%rip), %xmm2
; CHECK: align
; CHECK-NOT: LCPI
; CHECK: ret