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23c462a8b5
This allows targets to make more decisions about reserved registers after isel. For example, now it should be certain there are calls or stack objects in the frame or not, which could have been introduced by legalization. Patch by Matthias Braun llvm-svn: 363757
35 lines
781 B
LLVM
35 lines
781 B
LLVM
; RUN: llc -march=hexagon -print-after=finalize-isel -o /dev/null 2>&1 < %s | FileCheck %s
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; REQUIRES: asserts
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; CHECK: J2_call @f1
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; CHECK: PS_call_nr @f2
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target triple = "hexagon"
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@g0 = external global i32
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; Function Attrs: nounwind
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define i32 @f0() #0 {
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b0:
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%v0 = load i32, i32* @g0, align 4
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%v1 = tail call i32 @f1(i32 %v0) #0
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%v2 = icmp eq i32 %v1, 0
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br i1 %v2, label %b1, label %b2
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b1: ; preds = %b0
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tail call void @f2() #2
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unreachable
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b2: ; preds = %b0
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ret i32 0
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}
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declare i32 @f1(i32)
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; Function Attrs: noreturn
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declare void @f2() #1
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attributes #0 = { nounwind "disable-tail-calls"="true" }
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attributes #1 = { noreturn }
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attributes #2 = { noreturn nounwind }
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