; This tests codegen time inlining/optimization of memcmp
; rdar://6480398
-@.str = private constant [6 x i8] c"fooxx\00", align 1 ; <[6 x i8]*> [#uses=1]
+@.str = private constant [23 x i8] c"fooooooooooooooooooooo\00", align 1 ; <[23 x i8]*> [#uses=1]
declare i32 @memcmp(...)
return: ; preds = %entry
ret void
; CHECK: memcmp2:
-; CHECK: movw (%rsi), %ax
-; CHECK: cmpw %ax, (%rdi)
+; CHECK: movw (%rdi), %ax
+; CHECK: cmpw (%rsi), %ax
}
define void @memcmp2a(i8* %X, i32* nocapture %P) nounwind {
entry:
- %0 = tail call i32 (...)* @memcmp(i8* %X, i8* getelementptr inbounds ([6 x i8]* @.str, i32 0, i32 1), i32 2) nounwind ; <i32> [#uses=1]
+ %0 = tail call i32 (...)* @memcmp(i8* %X, i8* getelementptr inbounds ([23 x i8]* @.str, i32 0, i32 1), i32 2) nounwind ; <i32> [#uses=1]
%1 = icmp eq i32 %0, 0 ; <i1> [#uses=1]
br i1 %1, label %return, label %bb
return: ; preds = %entry
ret void
; CHECK: memcmp4:
-; CHECK: movl (%rsi), %eax
-; CHECK: cmpl %eax, (%rdi)
+; CHECK: movl (%rdi), %eax
+; CHECK: cmpl (%rsi), %eax
}
define void @memcmp4a(i8* %X, i32* nocapture %P) nounwind {
entry:
- %0 = tail call i32 (...)* @memcmp(i8* %X, i8* getelementptr inbounds ([6 x i8]* @.str, i32 0, i32 1), i32 4) nounwind ; <i32> [#uses=1]
+ %0 = tail call i32 (...)* @memcmp(i8* %X, i8* getelementptr inbounds ([23 x i8]* @.str, i32 0, i32 1), i32 4) nounwind ; <i32> [#uses=1]
%1 = icmp eq i32 %0, 0 ; <i1> [#uses=1]
br i1 %1, label %return, label %bb
return: ; preds = %entry
ret void
; CHECK: memcmp4a:
-; CHECK: cmpl $2021158767, (%rdi)
+; CHECK: cmpl $1869573999, (%rdi)
+}
+
+define void @memcmp8(i8* %X, i8* %Y, i32* nocapture %P) nounwind {
+entry:
+ %0 = tail call i32 (...)* @memcmp(i8* %X, i8* %Y, i32 8) nounwind ; <i32> [#uses=1]
+ %1 = icmp eq i32 %0, 0 ; <i1> [#uses=1]
+ br i1 %1, label %return, label %bb
+
+bb: ; preds = %entry
+ store i32 4, i32* %P, align 4
+ ret void
+
+return: ; preds = %entry
+ ret void
+; CHECK: memcmp8:
+; CHECK: movq (%rdi), %rax
+; CHECK: cmpq (%rsi), %rax
+}
+
+define void @memcmp8a(i8* %X, i32* nocapture %P) nounwind {
+entry:
+ %0 = tail call i32 (...)* @memcmp(i8* %X, i8* getelementptr inbounds ([23 x i8]* @.str, i32 0, i32 0), i32 8) nounwind ; <i32> [#uses=1]
+ %1 = icmp eq i32 %0, 0 ; <i1> [#uses=1]
+ br i1 %1, label %return, label %bb
+
+bb: ; preds = %entry
+ store i32 4, i32* %P, align 4
+ ret void
+
+return: ; preds = %entry
+ ret void
+; CHECK: memcmp8a:
+; CHECK: movabsq $8029759185026510694, %rax
+; CHECK: cmpq %rax, (%rdi)
}