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https://github.com/c64scene-ar/llvm-6502.git
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e2d6f91d63
For some reason I never got around to adding these at the same time as the signed versions. No idea why. I'm not sure whether this SystemZII::BranchC* stuff is useful, or whether it should just be replaced with an "is normal" flag. I'll leave that for later though. There are some boundary conditions that can be tweaked, such as preferring unsigned comparisons for equality with [128, 256), and "<= 255" over "< 256", but again I'll leave those for a separate patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190930 91177308-0d34-0410-b5e6-96231b3b80d8
63 lines
1.3 KiB
LLVM
63 lines
1.3 KiB
LLVM
; Test all condition-code masks that are relevant for CLGRJ.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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declare i64 @foo()
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@g1 = global i16 0
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define void @f1(i64 %target) {
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; CHECK-LABEL: f1:
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; CHECK: .cfi_def_cfa_offset
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; CHECK: .L[[LABEL:.*]]:
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; CHECK: clgrjle %r2, {{%r[0-9]+}}, .L[[LABEL]]
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br label %loop
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loop:
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%val = call i64 @foo()
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%cond = icmp ule i64 %val, %target
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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(i64 %target) {
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; CHECK-LABEL: f2:
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; CHECK: .cfi_def_cfa_offset
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; CHECK: .L[[LABEL:.*]]:
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; CHECK: clgrjl %r2, {{%r[0-9]+}}, .L[[LABEL]]
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br label %loop
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loop:
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%val = call i64 @foo()
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%cond = icmp ult i64 %val, %target
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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(i64 %target) {
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; CHECK-LABEL: f3:
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; CHECK: .cfi_def_cfa_offset
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; CHECK: .L[[LABEL:.*]]:
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; CHECK: clgrjh %r2, {{%r[0-9]+}}, .L[[LABEL]]
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br label %loop
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loop:
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%val = call i64 @foo()
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%cond = icmp ugt i64 %val, %target
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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(i64 %target) {
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; CHECK-LABEL: f4:
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; CHECK: .cfi_def_cfa_offset
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; CHECK: .L[[LABEL:.*]]:
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; CHECK: clgrjhe %r2, {{%r[0-9]+}}, .L[[LABEL]]
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br label %loop
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loop:
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%val = call i64 @foo()
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%cond = icmp uge i64 %val, %target
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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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