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https://github.com/c64scene-ar/llvm-6502.git
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b503b49b51
This adds all CodeGen tests for the SystemZ target. This version of the patch incorporates feedback from a review by Sean Silva. Thanks to all reviewers! Patch by Richard Sandiford. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181204 91177308-0d34-0410-b5e6-96231b3b80d8
50 lines
986 B
LLVM
50 lines
986 B
LLVM
; Test 32-bit GPR accesses to a PC-relative location.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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@gsrc16 = global i16 1
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@gsrc32 = global i32 1
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@gdst16 = global i16 2
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@gdst32 = global i32 2
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; Check sign-extending loads from i16.
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define i32 @f1() {
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; CHECK: f1:
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; CHECK: lhrl %r2, gsrc16
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; CHECK: br %r14
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%val = load i16 *@gsrc16
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%ext = sext i16 %val to i32
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ret i32 %ext
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}
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; Check zero-extending loads from i16.
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define i32 @f2() {
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; CHECK: f2:
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; CHECK: llhrl %r2, gsrc16
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; CHECK: br %r14
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%val = load i16 *@gsrc16
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%ext = zext i16 %val to i32
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ret i32 %ext
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}
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; Check truncating 16-bit stores.
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define void @f3(i32 %val) {
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; CHECK: f3:
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; CHECK: sthrl %r2, gdst16
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; CHECK: br %r14
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%half = trunc i32 %val to i16
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store i16 %half, i16 *@gdst16
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ret void
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}
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; Check plain loads and stores.
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define void @f4() {
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; CHECK: f4:
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; CHECK: lrl %r0, gsrc32
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; CHECK: strl %r0, gdst32
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; CHECK: br %r14
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%val = load i32 *@gsrc32
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store i32 %val, i32 *@gdst32
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ret void
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}
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