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dcc68e4eb3
Calls that are marked as @notoc do not require the extra nop after the call for the TOC restore. Differential Revision: https://reviews.llvm.org/D81081
63 lines
1.9 KiB
LLVM
63 lines
1.9 KiB
LLVM
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu \
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; RUN: -mcpu=future -ppc-asm-full-reg-names < %s \
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; RUN: | FileCheck %s --check-prefix=CHECK-S
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; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu \
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; RUN: -mcpu=future -ppc-asm-full-reg-names --filetype=obj < %s | \
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; RUN: llvm-objdump -dr - | FileCheck %s --check-prefix=CHECK-O
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; CHECK-S-LABEL: caller
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; CHECK-S: b callee@notoc
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; CHECK-O-LABEL: caller
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; CHECK-O: b
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; CHECK-O-NEXT: R_PPC64_REL24_NOTOC callee
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define dso_local signext i32 @caller() local_unnamed_addr {
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entry:
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%call = tail call signext i32 bitcast (i32 (...)* @callee to i32 ()*)()
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ret i32 %call
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}
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declare signext i32 @callee(...) local_unnamed_addr
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; Some calls can be considered Extrnal Symbols.
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; CHECK-S-LABEL: ExternalSymbol
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; CHECK-S: b memcpy@notoc
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; CHECK-O-LABEL: ExternalSymbol
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; CHECK-O: b
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; CHECK-O-NEXT: R_PPC64_REL24_NOTOC memcpy
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define dso_local void @ExternalSymbol(i8* nocapture %out, i8* nocapture readonly %in, i64 %num) local_unnamed_addr {
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entry:
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tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 1 %out, i8* align 1 %in, i64 %num, i1 false)
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ret void
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}
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* noalias nocapture writeonly, i8* noalias nocapture readonly, i64, i1 immarg)
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; CHECK-S-LABEL: callerNoTail
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; CHECK-S: bl callee@notoc
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; CHECK-S-NOT: nop
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; CHECK-S: bl callee@notoc
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; CHECK-S-NOT: nop
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; CHECK-S: blr
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; CHECK-O-LABEL: callerNoTail
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; CHECK-O: bl
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; CHECK-O-NEXT: R_PPC64_REL24_NOTOC callee
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; CHECK-O-NOT: nop
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; CHECK-O: bl
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; CHECK-O-NEXT: R_PPC64_REL24_NOTOC callee
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; CHECK-O-NOT: nop
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; CHECK-O: blr
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define dso_local signext i32 @callerNoTail() local_unnamed_addr {
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entry:
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%call1 = tail call signext i32 bitcast (i32 (...)* @callee to i32 ()*)()
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%call2 = tail call signext i32 bitcast (i32 (...)* @callee to i32 ()*)()
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%add = add i32 %call1, %call2
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ret i32 %add
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}
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