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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
82 lines
1.6 KiB
LLVM
82 lines
1.6 KiB
LLVM
; Test 64-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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@gsrc64 = global i64 1
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@gdst16 = global i16 2
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@gdst32 = global i32 2
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@gdst64 = global i64 2
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; Check sign-extending loads from i16.
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define i64 @f1() {
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; CHECK: f1:
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; CHECK: lghrl %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 i64
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ret i64 %ext
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}
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; Check zero-extending loads from i16.
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define i64 @f2() {
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; CHECK: f2:
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; CHECK: llghrl %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 i64
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ret i64 %ext
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}
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; Check sign-extending loads from i32.
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define i64 @f3() {
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; CHECK: f3:
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; CHECK: lgfrl %r2, gsrc32
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; CHECK: br %r14
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%val = load i32 *@gsrc32
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%ext = sext i32 %val to i64
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ret i64 %ext
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}
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; Check zero-extending loads from i32.
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define i64 @f4() {
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; CHECK: f4:
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; CHECK: llgfrl %r2, gsrc32
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; CHECK: br %r14
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%val = load i32 *@gsrc32
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%ext = zext i32 %val to i64
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ret i64 %ext
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}
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; Check truncating 16-bit stores.
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define void @f5(i64 %val) {
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; CHECK: f5:
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; CHECK: sthrl %r2, gdst16
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; CHECK: br %r14
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%half = trunc i64 %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 truncating 32-bit stores.
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define void @f6(i64 %val) {
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; CHECK: f6:
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; CHECK: strl %r2, gdst32
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; CHECK: br %r14
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%word = trunc i64 %val to i32
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store i32 %word, i32 *@gdst32
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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 @f7() {
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; CHECK: f7:
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; CHECK: lgrl %r0, gsrc64
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; CHECK: stgrl %r0, gdst64
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; CHECK: br %r14
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%val = load i64 *@gsrc64
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store i64 %val, i64 *@gdst64
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ret void
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}
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