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https://github.com/c64scene-ar/llvm-6502.git
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32923 91177308-0d34-0410-b5e6-96231b3b80d8
54 lines
1.1 KiB
LLVM
54 lines
1.1 KiB
LLVM
; RUN: llvm-as < %s | llc -march=ppc32 &&
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; RUN: llvm-as < %s | llc -march=ppc32 | not grep 'extsh\|rlwinm'
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declare i16 %foo() sext
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define i32 %test1(i16 sext %X) {
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%Y = sext i16 %X to i32 ;; dead
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ret i32 %Y
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}
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define i32 %test2(i16 zext %X) {
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%Y = sext i16 %X to i32
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%Z = and i32 %Y, 65535 ;; dead
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ret i32 %Z
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}
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define void %test3() {
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%tmp.0 = call i16 %foo() sext ;; no extsh!
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%tmp.1 = icmp slt i16 %tmp.0, 1234
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br bool %tmp.1, label %then, label %UnifiedReturnBlock
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then:
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call i32 %test1(i16 0 sext)
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ret void
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UnifiedReturnBlock:
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ret void
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}
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define i32 %test4(i16* %P) {
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%tmp.1 = load i16* %P
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%tmp.2 = zext i16 %tmp.1 to i32
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%tmp.3 = and i32 %tmp.2, 255
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ret i32 %tmp.3
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}
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define i32 %test5(i16* %P) {
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%tmp.1 = load i16* %P
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%tmp.2 = bitcast i16 %tmp.1 to i16
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%tmp.3 = zext i16 %tmp.2 to i32
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%tmp.4 = and i32 %tmp.3, 255
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ret i32 %tmp.4
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}
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define i32 %test6(i32* %P) {
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%tmp.1 = load i32* %P
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%tmp.2 = and i32 %tmp.1, 255
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ret i32 %tmp.2
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}
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define i16 %test7(float %a) zext {
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%tmp.1 = fptoui float %a to i16
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ret i16 %tmp.1
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}
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