a1710eb3cd
The LIT test cases were migrated with the script provided by Nikita Popov. No manual changes were made. Committed without review since no functional changes, after consultation with uweigand.
109 lines
2.4 KiB
LLVM
109 lines
2.4 KiB
LLVM
; Test that we can use OI for byte operations that are expressed as i32
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; or i64 operations.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; Zero extension to 32 bits, negative constant.
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define void @f1(ptr %ptr) {
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; CHECK-LABEL: f1:
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; CHECK: oi 0(%r2), 254
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; CHECK: br %r14
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%val = load i8, ptr %ptr
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%ext = zext i8 %val to i32
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%or = or i32 %ext, -2
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%trunc = trunc i32 %or to i8
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store i8 %trunc, ptr %ptr
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ret void
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}
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; Zero extension to 64 bits, negative constant.
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define void @f2(ptr %ptr) {
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; CHECK-LABEL: f2:
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; CHECK: oi 0(%r2), 254
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; CHECK: br %r14
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%val = load i8, ptr %ptr
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%ext = zext i8 %val to i64
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%or = or i64 %ext, -2
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%trunc = trunc i64 %or to i8
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store i8 %trunc, ptr %ptr
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ret void
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}
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; Zero extension to 32 bits, positive constant.
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define void @f3(ptr %ptr) {
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; CHECK-LABEL: f3:
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; CHECK: oi 0(%r2), 254
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; CHECK: br %r14
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%val = load i8, ptr %ptr
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%ext = zext i8 %val to i32
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%or = or i32 %ext, 254
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%trunc = trunc i32 %or to i8
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store i8 %trunc, ptr %ptr
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ret void
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}
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; Zero extension to 64 bits, positive constant.
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define void @f4(ptr %ptr) {
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; CHECK-LABEL: f4:
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; CHECK: oi 0(%r2), 254
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; CHECK: br %r14
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%val = load i8, ptr %ptr
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%ext = zext i8 %val to i64
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%or = or i64 %ext, 254
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%trunc = trunc i64 %or to i8
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store i8 %trunc, ptr %ptr
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ret void
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}
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; Sign extension to 32 bits, negative constant.
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define void @f5(ptr %ptr) {
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; CHECK-LABEL: f5:
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; CHECK: oi 0(%r2), 254
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; CHECK: br %r14
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%val = load i8, ptr %ptr
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%ext = sext i8 %val to i32
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%or = or i32 %ext, -2
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%trunc = trunc i32 %or to i8
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store i8 %trunc, ptr %ptr
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ret void
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}
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; Sign extension to 64 bits, negative constant.
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define void @f6(ptr %ptr) {
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; CHECK-LABEL: f6:
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; CHECK: oi 0(%r2), 254
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; CHECK: br %r14
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%val = load i8, ptr %ptr
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%ext = sext i8 %val to i64
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%or = or i64 %ext, -2
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%trunc = trunc i64 %or to i8
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store i8 %trunc, ptr %ptr
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ret void
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}
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; Sign extension to 32 bits, positive constant.
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define void @f7(ptr %ptr) {
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; CHECK-LABEL: f7:
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; CHECK: oi 0(%r2), 254
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; CHECK: br %r14
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%val = load i8, ptr %ptr
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%ext = sext i8 %val to i32
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%or = or i32 %ext, 254
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%trunc = trunc i32 %or to i8
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store i8 %trunc, ptr %ptr
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ret void
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}
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; Sign extension to 64 bits, positive constant.
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define void @f8(ptr %ptr) {
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; CHECK-LABEL: f8:
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; CHECK: oi 0(%r2), 254
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; CHECK: br %r14
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%val = load i8, ptr %ptr
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%ext = sext i8 %val to i64
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%or = or i64 %ext, 254
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%trunc = trunc i64 %or to i8
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store i8 %trunc, ptr %ptr
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ret void
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}
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