forked from OSchip/llvm-project
71 lines
1.7 KiB
LLVM
71 lines
1.7 KiB
LLVM
; RUN: opt < %s -gvn-sink -simplifycfg -simplifycfg-sink-common=false -S | FileCheck %s
|
|
|
|
declare i8 @ext(i1)
|
|
|
|
define zeroext i1 @test1(i1 zeroext %flag, i32 %blksA, i32 %blksB, i32 %nblks, i8(i1)* %ext) {
|
|
entry:
|
|
%cmp = icmp uge i32 %blksA, %nblks
|
|
br i1 %flag, label %if.then, label %if.else
|
|
|
|
; CHECK-LABEL: test1
|
|
; CHECK: call i8 @ext
|
|
; CHECK: call i8 %ext
|
|
if.then:
|
|
%frombool1 = call i8 @ext(i1 %cmp)
|
|
br label %if.end
|
|
|
|
if.else:
|
|
%frombool3 = call i8 %ext(i1 %cmp)
|
|
br label %if.end
|
|
|
|
if.end:
|
|
%obeys.0 = phi i8 [ %frombool1, %if.then ], [ %frombool3, %if.else ]
|
|
%tobool4 = icmp ne i8 %obeys.0, 0
|
|
ret i1 %tobool4
|
|
}
|
|
|
|
define zeroext i1 @test2(i1 zeroext %flag, i32 %blksA, i32 %blksB, i32 %nblks, i8(i1)* %ext) {
|
|
entry:
|
|
%cmp = icmp uge i32 %blksA, %nblks
|
|
br i1 %flag, label %if.then, label %if.else
|
|
|
|
; CHECK-LABEL: test2
|
|
; CHECK: call i8 %ext
|
|
; CHECK-NOT: call
|
|
if.then:
|
|
%frombool1 = call i8 %ext(i1 %cmp)
|
|
br label %if.end
|
|
|
|
if.else:
|
|
%frombool3 = call i8 %ext(i1 %cmp)
|
|
br label %if.end
|
|
|
|
if.end:
|
|
%obeys.0 = phi i8 [ %frombool1, %if.then ], [ %frombool3, %if.else ]
|
|
%tobool4 = icmp ne i8 %obeys.0, 0
|
|
ret i1 %tobool4
|
|
}
|
|
|
|
define zeroext i1 @test3(i1 zeroext %flag, i32 %blksA, i32 %blksB, i32 %nblks, i8(i1)* %ext1, i8(i1)* %ext2) {
|
|
entry:
|
|
%cmp = icmp uge i32 %blksA, %nblks
|
|
br i1 %flag, label %if.then, label %if.else
|
|
|
|
; CHECK-LABEL: test3
|
|
; CHECK: %[[x:.*]] = select i1 %flag, i8 (i1)* %ext1, i8 (i1)* %ext2
|
|
; CHECK: call i8 %[[x]](i1 %cmp)
|
|
; CHECK-NOT: call
|
|
if.then:
|
|
%frombool1 = call i8 %ext1(i1 %cmp)
|
|
br label %if.end
|
|
|
|
if.else:
|
|
%frombool3 = call i8 %ext2(i1 %cmp)
|
|
br label %if.end
|
|
|
|
if.end:
|
|
%obeys.0 = phi i8 [ %frombool1, %if.then ], [ %frombool3, %if.else ]
|
|
%tobool4 = icmp ne i8 %obeys.0, 0
|
|
ret i1 %tobool4
|
|
}
|