Fix pointer info on PPC byval stores

[oota-llvm.git] / test / Transforms / InstCombine / canonicalize_branch.ll

diff --git a/test/Transforms/InstCombine/canonicalize_branch.ll b/test/Transforms/InstCombine/canonicalize_branch.ll
index 79f02e73209ab213f1567e08bc77c08a91048738..b62b143d9d512d24489a052d82ccedac23f8a18e 100644 (file)
--- a/test/Transforms/InstCombine/canonicalize_branch.ll
+++ b/test/Transforms/InstCombine/canonicalize_branch.ll
@@ -1,36 +1,69 @@
-; RUN: llvm-as < %s | opt -instcombine | llvm-dis | \
-; RUN:    not grep {icmp ne\|icmp ule\|icmp uge}
+; RUN: opt < %s -instcombine -S | FileCheck %s
 
-define i32 @test1(i32 %X, i32 %Y) {
-        %C = icmp ne i32 %X, %Y         ; <i1> [#uses=1]
-        br i1 %C, label %T, label %F
+; Test an already canonical branch to make sure we don't flip those.
+define i32 @test0(i32 %X, i32 %Y) {
+        %C = icmp eq i32 %X, %Y
+        br i1 %C, label %T, label %F, !prof !0
+
+; CHECK-LABEL: @test0(
+; CHECK: %C = icmp eq i32 %X, %Y
+; CHECK: br i1 %C, label %T, label %F
 
-T:              ; preds = %0
+T:
         ret i32 12
+F:
+        ret i32 123
+}
+
+define i32 @test1(i32 %X, i32 %Y) {
+        %C = icmp ne i32 %X, %Y
+        br i1 %C, label %T, label %F, !prof !1
 
-F:              ; preds = %0
+; CHECK-LABEL: @test1(
+; CHECK: %C = icmp eq i32 %X, %Y
+; CHECK: br i1 %C, label %F, label %T
+
+T:
+        ret i32 12
+F:
         ret i32 123
 }
 
 define i32 @test2(i32 %X, i32 %Y) {
-        %C = icmp ule i32 %X, %Y                ; <i1> [#uses=1]
-        br i1 %C, label %T, label %F
+        %C = icmp ule i32 %X, %Y
+        br i1 %C, label %T, label %F, !prof !2
 
-T:              ; preds = %0
-        ret i32 12
+; CHECK-LABEL: @test2(
+; CHECK: %C = icmp ugt i32 %X, %Y
+; CHECK: br i1 %C, label %F, label %T
 
-F:              ; preds = %0
+T:
+        ret i32 12
+F:
         ret i32 123
 }
 
 define i32 @test3(i32 %X, i32 %Y) {
-        %C = icmp uge i32 %X, %Y                ; <i1> [#uses=1]
-        br i1 %C, label %T, label %F
+        %C = icmp uge i32 %X, %Y
+        br i1 %C, label %T, label %F, !prof !3
 
-T:              ; preds = %0
-        ret i32 12
+; CHECK-LABEL: @test3(
+; CHECK: %C = icmp ult i32 %X, %Y
+; CHECK: br i1 %C, label %F, label %T
 
-F:              ; preds = %0
+T:
+        ret i32 12
+F:
         ret i32 123
 }
 
+!0 = metadata !{metadata !"branch_weights", i32 1, i32 2}
+!1 = metadata !{metadata !"branch_weights", i32 3, i32 4}
+!2 = metadata !{metadata !"branch_weights", i32 5, i32 6}
+!3 = metadata !{metadata !"branch_weights", i32 7, i32 8}
+; Base case shouldn't change.
+; CHECK: !0 = {{.*}} i32 1, i32 2}
+; Ensure that the branch metadata is reversed to match the reversals above.
+; CHECK: !1 = {{.*}} i32 4, i32 3}
+; CHECK: !2 = {{.*}} i32 6, i32 5}
+; CHECK: !3 = {{.*}} i32 8, i32 7}