2208c97c1b
Similar to 806761a7629df268c8aed49657aeccffa6bca449 -mtriple= specifies the full target triple while -march= merely sets the architecture part of the default target triple, leaving a target triple which may not make sense. Therefore, -march= is error-prone and not recommended for tests without a target triple. The issue has been benign as we recognize $unknown-apple-darwin as ELF instead of rejecting it outrightly.
23 lines
613 B
LLVM
23 lines
613 B
LLVM
; RUN: llc -mtriple=hexagon -mcpu=hexagonv5 < %s | FileCheck %s
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; We shouldn't generate a hardware loop in this case because the initial
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; value may be zero, which means the endloop instruction will not decrement
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; the loop counter, and the loop will execute only once.
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; CHECK-NOT: loop0
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define void @foo(i32 %count, i32 %v) #0 {
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entry:
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br label %do.body
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do.body:
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%count.addr.0 = phi i32 [ %count, %entry ], [ %dec, %do.body ]
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tail call void asm sideeffect "nop", ""() #1
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%dec = add i32 %count.addr.0, -1
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%cmp = icmp eq i32 %dec, 0
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br i1 %cmp, label %do.end, label %do.body
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do.end:
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ret void
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}
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