llvm-6502/test/CodeGen/PowerPC/crsave.ll
Rafael Espindola 0225d5a3af Extend test for better coverage.
Without this change nothing was covering this addFrameMove:

// For 64-bit SVR4 when we have spilled CRs, the spill location
// is SP+8, not a frame-relative slot.
if (Subtarget.isSVR4ABI()
    && Subtarget.isPPC64()
    && (PPC::CR2 <= Reg && Reg <= PPC::CR4)) {
  MachineLocation CSDst(PPC::X1, 8);
  MachineLocation CSSrc(PPC::CR2);
  MMI.addFrameMove(Label, CSDst, CSSrc);
  continue;
}

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181976 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-16 03:48:50 +00:00

63 lines
1.7 KiB
LLVM

; RUN: llc -O0 -disable-fp-elim -mtriple=powerpc-unknown-linux-gnu < %s | FileCheck %s -check-prefix=PPC32
; RUN: llc -O0 -mtriple=powerpc64-unknown-linux-gnu < %s | FileCheck %s -check-prefix=PPC64
declare void @foo()
define i32 @test_cr2() nounwind uwtable {
entry:
%ret = alloca i32, align 4
%0 = call i32 asm sideeffect "\0A\09mtcr $4\0A\09cmp 2,$2,$1\0A\09mfcr $0", "=r,r,r,r,r,~{cr2}"(i32 1, i32 2, i32 3, i32 0) nounwind
store i32 %0, i32* %ret, align 4
call void @foo()
%1 = load i32* %ret, align 4
ret i32 %1
}
; PPC32: stw 31, -4(1)
; PPC32: stwu 1, -32(1)
; PPC32: mfcr 12
; PPC32-NEXT: stw 12, 24(31)
; PPC32: lwz 12, 24(31)
; PPC32-NEXT: mtcrf 32, 12
; PPC64: .cfi_startproc
; PPC64: mfcr 12
; PPC64: stw 12, 8(1)
; PPC64: stdu 1, -[[AMT:[0-9]+]](1)
; PPC64: .cfi_def_cfa_offset 128
; PPC64: .cfi_offset lr, 16
; PPC64: .cfi_offset cr2, 8
; PPC64: addi 1, 1, [[AMT]]
; PPC64: lwz 12, 8(1)
; PPC64: mtcrf 32, 12
; PPC64: .cfi_endproc
define i32 @test_cr234() nounwind {
entry:
%ret = alloca i32, align 4
%0 = call i32 asm sideeffect "\0A\09mtcr $4\0A\09cmp 2,$2,$1\0A\09cmp 3,$2,$2\0A\09cmp 4,$2,$3\0A\09mfcr $0", "=r,r,r,r,r,~{cr2},~{cr3},~{cr4}"(i32 1, i32 2, i32 3, i32 0) nounwind
store i32 %0, i32* %ret, align 4
call void @foo()
%1 = load i32* %ret, align 4
ret i32 %1
}
; PPC32: stw 31, -4(1)
; PPC32: stwu 1, -32(1)
; PPC32: mfcr 12
; PPC32-NEXT: stw 12, 24(31)
; PPC32: lwz 12, 24(31)
; PPC32-NEXT: mtcrf 32, 12
; PPC32-NEXT: mtcrf 16, 12
; PPC32-NEXT: mtcrf 8, 12
; PPC64: mfcr 12
; PPC64: stw 12, 8(1)
; PPC64: stdu 1, -[[AMT:[0-9]+]](1)
; PPC64: addi 1, 1, [[AMT]]
; PPC64: lwz 12, 8(1)
; PPC64: mtcrf 32, 12
; PPC64: mtcrf 16, 12
; PPC64: mtcrf 8, 12