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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
25 lines
571 B
LLVM
25 lines
571 B
LLVM
; Test byteswaps between registers.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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declare i32 @llvm.bswap.i32(i32 %a)
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declare i64 @llvm.bswap.i64(i64 %a)
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; Check 32-bit register-to-register byteswaps.
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define i32 @f1(i32 %a) {
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; CHECK: f1:
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; CHECK: lrvr [[REGISTER:%r[0-5]]], %r2
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; CHECk: br %r14
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%swapped = call i32 @llvm.bswap.i32(i32 %a)
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ret i32 %swapped
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}
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; Check 64-bit register-to-register byteswaps.
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define i64 @f2(i64 %a) {
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; CHECK: f2:
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; CHECK: lrvgr %r2, %r2
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; CHECk: br %r14
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%swapped = call i64 @llvm.bswap.i64(i64 %a)
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ret i64 %swapped
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}
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