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96 lines
2.1 KiB
96 lines
2.1 KiB
4 months ago
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; Test all condition-code masks that are relevant for signed integer
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; comparisons, in cases where a separate branch is better than COMPARE
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; AND BRANCH.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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define void @f1(i32 *%src, i32 %target) {
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; CHECK-LABEL: f1:
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; CHECK: .cfi_startproc
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; CHECK: .L[[LABEL:.*]]:
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; CHECK: c %r3, 0(%r2)
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; CHECK-NEXT: je .L[[LABEL]]
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br label %loop
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loop:
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%val = load volatile i32 , i32 *%src
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%cond = icmp eq i32 %target, %val
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br i1 %cond, label %loop, label %exit
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exit:
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ret void
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}
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define void @f2(i32 *%src, i32 %target) {
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; CHECK-LABEL: f2:
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; CHECK: .cfi_startproc
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; CHECK: .L[[LABEL:.*]]:
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; CHECK: c %r3, 0(%r2)
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; CHECK-NEXT: jlh .L[[LABEL]]
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br label %loop
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loop:
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%val = load volatile i32 , i32 *%src
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%cond = icmp ne i32 %target, %val
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br i1 %cond, label %loop, label %exit
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exit:
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ret void
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}
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define void @f3(i32 *%src, i32 %target) {
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; CHECK-LABEL: f3:
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; CHECK: .cfi_startproc
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; CHECK: .L[[LABEL:.*]]:
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; CHECK: c %r3, 0(%r2)
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; CHECK-NEXT: jle .L[[LABEL]]
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br label %loop
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loop:
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%val = load volatile i32 , i32 *%src
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%cond = icmp sle i32 %target, %val
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br i1 %cond, label %loop, label %exit
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exit:
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ret void
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}
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define void @f4(i32 *%src, i32 %target) {
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; CHECK-LABEL: f4:
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; CHECK: .cfi_startproc
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; CHECK: .L[[LABEL:.*]]:
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; CHECK: c %r3, 0(%r2)
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; CHECK-NEXT: jl .L[[LABEL]]
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br label %loop
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loop:
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%val = load volatile i32 , i32 *%src
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%cond = icmp slt i32 %target, %val
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br i1 %cond, label %loop, label %exit
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exit:
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ret void
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}
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define void @f5(i32 *%src, i32 %target) {
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; CHECK-LABEL: f5:
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; CHECK: .cfi_startproc
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; CHECK: .L[[LABEL:.*]]:
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; CHECK: c %r3, 0(%r2)
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; CHECK-NEXT: jh .L[[LABEL]]
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br label %loop
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loop:
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%val = load volatile i32 , i32 *%src
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%cond = icmp sgt i32 %target, %val
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br i1 %cond, label %loop, label %exit
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exit:
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ret void
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}
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define void @f6(i32 *%src, i32 %target) {
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; CHECK-LABEL: f6:
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; CHECK: .cfi_startproc
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; CHECK: .L[[LABEL:.*]]:
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; CHECK: c %r3, 0(%r2)
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; CHECK-NEXT: jhe .L[[LABEL]]
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br label %loop
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loop:
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%val = load volatile i32 , i32 *%src
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%cond = icmp sge i32 %target, %val
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br i1 %cond, label %loop, label %exit
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exit:
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ret void
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}
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