forked from OSchip/llvm-project
53 lines
1.1 KiB
LLVM
53 lines
1.1 KiB
LLVM
; RUN: llc < %s -march=ppc32 | not grep "extsh\|rlwinm"
|
|
|
|
declare signext i16 @foo()
|
|
|
|
define i32 @test1(i16 signext %X) {
|
|
%Y = sext i16 %X to i32 ;; dead
|
|
ret i32 %Y
|
|
}
|
|
|
|
define i32 @test2(i16 zeroext %X) {
|
|
%Y = sext i16 %X to i32
|
|
%Z = and i32 %Y, 65535 ;; dead
|
|
ret i32 %Z
|
|
}
|
|
|
|
define void @test3() {
|
|
%tmp.0 = call signext i16 @foo() ;; no extsh!
|
|
%tmp.1 = icmp slt i16 %tmp.0, 1234
|
|
br i1 %tmp.1, label %then, label %UnifiedReturnBlock
|
|
|
|
then:
|
|
call i32 @test1(i16 signext 0)
|
|
ret void
|
|
UnifiedReturnBlock:
|
|
ret void
|
|
}
|
|
|
|
define i32 @test4(i16* %P) {
|
|
%tmp.1 = load i16* %P
|
|
%tmp.2 = zext i16 %tmp.1 to i32
|
|
%tmp.3 = and i32 %tmp.2, 255
|
|
ret i32 %tmp.3
|
|
}
|
|
|
|
define i32 @test5(i16* %P) {
|
|
%tmp.1 = load i16* %P
|
|
%tmp.2 = bitcast i16 %tmp.1 to i16
|
|
%tmp.3 = zext i16 %tmp.2 to i32
|
|
%tmp.4 = and i32 %tmp.3, 255
|
|
ret i32 %tmp.4
|
|
}
|
|
|
|
define i32 @test6(i32* %P) {
|
|
%tmp.1 = load i32* %P
|
|
%tmp.2 = and i32 %tmp.1, 255
|
|
ret i32 %tmp.2
|
|
}
|
|
|
|
define zeroext i16 @test7(float %a) {
|
|
%tmp.1 = fptoui float %a to i16
|
|
ret i16 %tmp.1
|
|
}
|