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llvm-project/llvm/test/CodeGen/PowerPC/ppc32-nest.ll

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Adding -verify-machineinstrs option to PowerPC tests Currently we have a number of tests that fail with -verify-machineinstrs. To detect this cases earlier we add the option to the testcases with the exception of tests that will currently fail with this option. PR 27456 keeps track of this failures. No code review, as discussed with Hal Finkel. llvm-svn: 277624
2016-08-04 02:17:35 +08:00
; RUN: llc -verify-machineinstrs < %s | FileCheck %s
[PowerPC] Support the nest parameter attribute This adds support for the 'nest' attribute, which allows the static chain register to be set for functions calls under non-Darwin PPC/PPC64 targets. r11 is the chain register (which the PPC64 ELF ABI calls the "environment pointer"). For indirect calls under PPC64 ELFv1, this would normally be loaded from the function descriptor, but providing an explicit 'nest' parameter will override that process and use the value provided. This allows __builtin_call_with_static_chain to work as expected on PowerPC. llvm-svn: 241984
2015-07-12 08:37:44 +08:00
target datalayout = "E-m:e-p:32:32-i64:64-n32"
target triple = "powerpc-unknown-linux-gnu"
; Tests that the 'nest' parameter attribute causes the relevant parameter to be
; passed in the right register (r11 for PPC).
define i8* @nest_receiver(i8* nest %arg) nounwind {
; CHECK-LABEL: nest_receiver:
; CHECK: # BB#0:
; CHECK-NEXT: mr 3, 11
; CHECK-NEXT: blr
ret i8* %arg
}
define i8* @nest_caller(i8* %arg) nounwind {
; CHECK-LABEL: nest_caller:
; CHECK: mr 11, 3
; CHECK-NEXT: bl nest_receiver
; CHECK: blr
%result = call i8* @nest_receiver(i8* nest %arg)
ret i8* %result
}