X86: Fix the (saddo/ssub x, 1) -> incl/decl selection to check the right operand for 1.
Found by inspection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127247 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/add.ll b/test/CodeGen/X86/add.ll
index 62c8980..b95e5b5 100644
--- a/test/CodeGen/X86/add.ll
+++ b/test/CodeGen/X86/add.ll
@@ -133,3 +133,18 @@
; X64: subl
; X64: ret
}
+
+define i1 @test10(i32 %x) nounwind {
+entry:
+ %t = call {i32, i1} @llvm.sadd.with.overflow.i32(i32 %x, i32 1)
+ %obit = extractvalue {i32, i1} %t, 1
+ ret i1 %obit
+
+; X32: test10:
+; X32: incl
+; X32-NEXT: seto
+
+; X64: test10:
+; X64: incl
+; X64-NEXT: seto
+}
diff --git a/test/CodeGen/X86/sub-with-overflow.ll b/test/CodeGen/X86/sub-with-overflow.ll
index 19f4079..4522e91 100644
--- a/test/CodeGen/X86/sub-with-overflow.ll
+++ b/test/CodeGen/X86/sub-with-overflow.ll
@@ -1,5 +1,4 @@
-; RUN: llc < %s -march=x86 | grep {jo} | count 1
-; RUN: llc < %s -march=x86 | grep {jb} | count 1
+; RUN: llc < %s -march=x86 | FileCheck %s
@ok = internal constant [4 x i8] c"%d\0A\00"
@no = internal constant [4 x i8] c"no\0A\00"
@@ -18,6 +17,10 @@
overflow:
%t2 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @no, i32 0, i32 0) ) nounwind
ret i1 false
+
+; CHECK: func1:
+; CHECK: subl 20(%esp)
+; CHECK-NEXT: jo
}
define i1 @func2(i32 %v1, i32 %v2) nounwind {
@@ -34,8 +37,23 @@
carry:
%t2 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @no, i32 0, i32 0) ) nounwind
ret i1 false
+
+; CHECK: func2:
+; CHECK: subl 20(%esp)
+; CHECK-NEXT: jb
}
declare i32 @printf(i8*, ...) nounwind
declare {i32, i1} @llvm.ssub.with.overflow.i32(i32, i32)
declare {i32, i1} @llvm.usub.with.overflow.i32(i32, i32)
+
+define i1 @func3(i32 %x) nounwind {
+entry:
+ %t = call {i32, i1} @llvm.ssub.with.overflow.i32(i32 %x, i32 1)
+ %obit = extractvalue {i32, i1} %t, 1
+ ret i1 %obit
+
+; CHECK: func3:
+; CHECK: decl
+; CHECK-NEXT: seto
+}