eb7d16ea25
mflr is kind of expensive on Power version smaller than 10, so we should schedule the store for the mflr's def away from mflr. In epilogue, the expensive mtlr has no user for its def, so it doesn't matter that the load and the mtlr are back-to-back. Reviewed By: RolandF Differential Revision: https://reviews.llvm.org/D137423
261 lines
7.5 KiB
LLVM
261 lines
7.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=powerpc64le-unknown-linux-unknown -verify-machineinstrs %s \
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; RUN: -ppc-asm-full-reg-names -o - | FileCheck %s --check-prefix=PPC64LE
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; RUN: llc -mtriple=powerpc64-unknown-linux-unknown -verify-machineinstrs %s \
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; RUN: -ppc-asm-full-reg-names -o - | FileCheck %s --check-prefix=PPC64BE
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define dso_local void @ClobberLR() local_unnamed_addr #0 {
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; PPC64LE-LABEL: ClobberLR:
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; PPC64LE: # %bb.0: # %entry
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; PPC64LE-NEXT: mflr r0
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; PPC64LE-NEXT: stdu r1, -32(r1)
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; PPC64LE-NEXT: std r0, 48(r1)
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; PPC64LE-NEXT: #APP
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; PPC64LE-NEXT: #NO_APP
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; PPC64LE-NEXT: addi r1, r1, 32
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; PPC64LE-NEXT: ld r0, 16(r1)
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; PPC64LE-NEXT: mtlr r0
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; PPC64LE-NEXT: blr
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;
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; PPC64BE-LABEL: ClobberLR:
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; PPC64BE: # %bb.0: # %entry
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; PPC64BE-NEXT: mflr r0
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; PPC64BE-NEXT: stdu r1, -48(r1)
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; PPC64BE-NEXT: std r0, 64(r1)
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; PPC64BE-NEXT: #APP
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; PPC64BE-NEXT: #NO_APP
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; PPC64BE-NEXT: addi r1, r1, 48
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; PPC64BE-NEXT: ld r0, 16(r1)
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; PPC64BE-NEXT: mtlr r0
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; PPC64BE-NEXT: blr
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entry:
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tail call void asm sideeffect "", "~{lr}"()
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ret void
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}
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define dso_local void @ClobberR5() local_unnamed_addr #0 {
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; PPC64LE-LABEL: ClobberR5:
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; PPC64LE: # %bb.0: # %entry
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; PPC64LE-NEXT: #APP
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; PPC64LE-NEXT: #NO_APP
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; PPC64LE-NEXT: blr
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;
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; PPC64BE-LABEL: ClobberR5:
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; PPC64BE: # %bb.0: # %entry
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; PPC64BE-NEXT: #APP
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; PPC64BE-NEXT: #NO_APP
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; PPC64BE-NEXT: blr
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entry:
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tail call void asm sideeffect "", "~{r5}"()
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ret void
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}
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define dso_local void @ClobberR15() local_unnamed_addr #0 {
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; PPC64LE-LABEL: ClobberR15:
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; PPC64LE: # %bb.0: # %entry
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; PPC64LE-NEXT: std r15, -136(r1) # 8-byte Folded Spill
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; PPC64LE-NEXT: #APP
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; PPC64LE-NEXT: #NO_APP
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; PPC64LE-NEXT: ld r15, -136(r1) # 8-byte Folded Reload
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; PPC64LE-NEXT: blr
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;
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; PPC64BE-LABEL: ClobberR15:
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; PPC64BE: # %bb.0: # %entry
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; PPC64BE-NEXT: std r15, -136(r1) # 8-byte Folded Spill
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; PPC64BE-NEXT: #APP
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; PPC64BE-NEXT: #NO_APP
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; PPC64BE-NEXT: ld r15, -136(r1) # 8-byte Folded Reload
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; PPC64BE-NEXT: blr
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entry:
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tail call void asm sideeffect "", "~{r15}"()
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ret void
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}
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;; Test for INLINEASM_BR
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define dso_local signext i32 @ClobberLR_BR(i32 signext %in) #0 {
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; PPC64LE-LABEL: ClobberLR_BR:
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; PPC64LE: # %bb.0: # %entry
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; PPC64LE-NEXT: mflr r0
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; PPC64LE-NEXT: stdu r1, -32(r1)
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; PPC64LE-NEXT: std r0, 48(r1)
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; PPC64LE-NEXT: #APP
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; PPC64LE-NEXT: nop
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; PPC64LE-NEXT: #NO_APP
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; PPC64LE-NEXT: .LBB3_1: # %return
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; PPC64LE-NEXT: addi r1, r1, 32
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; PPC64LE-NEXT: ld r0, 16(r1)
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; PPC64LE-NEXT: mtlr r0
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; PPC64LE-NEXT: blr
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; PPC64LE-NEXT: .LBB3_2: # Block address taken
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; PPC64LE-NEXT: # %return_early
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; PPC64LE-NEXT: # Label of block must be emitted
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; PPC64LE-NEXT: li r3, 0
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; PPC64LE-NEXT: b .LBB3_1
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;
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; PPC64BE-LABEL: ClobberLR_BR:
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; PPC64BE: # %bb.0: # %entry
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; PPC64BE-NEXT: mflr r0
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; PPC64BE-NEXT: stdu r1, -48(r1)
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; PPC64BE-NEXT: std r0, 64(r1)
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; PPC64BE-NEXT: #APP
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; PPC64BE-NEXT: nop
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; PPC64BE-NEXT: #NO_APP
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; PPC64BE-NEXT: .LBB3_1: # %return
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; PPC64BE-NEXT: addi r1, r1, 48
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; PPC64BE-NEXT: ld r0, 16(r1)
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; PPC64BE-NEXT: mtlr r0
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; PPC64BE-NEXT: blr
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; PPC64BE-NEXT: .LBB3_2: # Block address taken
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; PPC64BE-NEXT: # %return_early
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; PPC64BE-NEXT: # Label of block must be emitted
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; PPC64BE-NEXT: li r3, 0
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; PPC64BE-NEXT: b .LBB3_1
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entry:
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callbr void asm sideeffect "nop", "!i,~{lr}"()
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to label %return [label %return_early]
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return_early:
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br label %return
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return:
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%retval.0 = phi i32 [ 0, %return_early ], [ %in, %entry ]
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ret i32 %retval.0
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}
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define dso_local signext i32 @ClobberR5_BR(i32 signext %in) #0 {
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; PPC64LE-LABEL: ClobberR5_BR:
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; PPC64LE: # %bb.0: # %entry
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; PPC64LE-NEXT: #APP
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; PPC64LE-NEXT: nop
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; PPC64LE-NEXT: #NO_APP
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; PPC64LE-NEXT: # %bb.1: # %return
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; PPC64LE-NEXT: blr
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; PPC64LE-NEXT: .LBB4_2: # Block address taken
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; PPC64LE-NEXT: # %return_early
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; PPC64LE-NEXT: # Label of block must be emitted
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; PPC64LE-NEXT: li r3, 0
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; PPC64LE-NEXT: blr
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;
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; PPC64BE-LABEL: ClobberR5_BR:
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; PPC64BE: # %bb.0: # %entry
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; PPC64BE-NEXT: #APP
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; PPC64BE-NEXT: nop
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; PPC64BE-NEXT: #NO_APP
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; PPC64BE-NEXT: # %bb.1: # %return
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; PPC64BE-NEXT: blr
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; PPC64BE-NEXT: .LBB4_2: # Block address taken
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; PPC64BE-NEXT: # %return_early
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; PPC64BE-NEXT: # Label of block must be emitted
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; PPC64BE-NEXT: li r3, 0
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; PPC64BE-NEXT: blr
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entry:
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callbr void asm sideeffect "nop", "!i,~{r5}"()
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to label %return [label %return_early]
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return_early:
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br label %return
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return:
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%retval.0 = phi i32 [ 0, %return_early ], [ %in, %entry ]
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ret i32 %retval.0
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}
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define dso_local void @DefLR() local_unnamed_addr #0 {
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; PPC64LE-LABEL: DefLR:
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; PPC64LE: # %bb.0: # %entry
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; PPC64LE-NEXT: mflr r0
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; PPC64LE-NEXT: stdu r1, -32(r1)
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; PPC64LE-NEXT: std r0, 48(r1)
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; PPC64LE-NEXT: #APP
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; PPC64LE-NEXT: #NO_APP
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; PPC64LE-NEXT: addi r1, r1, 32
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; PPC64LE-NEXT: ld r0, 16(r1)
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; PPC64LE-NEXT: mtlr r0
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; PPC64LE-NEXT: blr
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;
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; PPC64BE-LABEL: DefLR:
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; PPC64BE: # %bb.0: # %entry
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; PPC64BE-NEXT: mflr r0
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; PPC64BE-NEXT: stdu r1, -48(r1)
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; PPC64BE-NEXT: std r0, 64(r1)
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; PPC64BE-NEXT: #APP
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; PPC64BE-NEXT: #NO_APP
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; PPC64BE-NEXT: addi r1, r1, 48
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; PPC64BE-NEXT: ld r0, 16(r1)
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; PPC64BE-NEXT: mtlr r0
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; PPC64BE-NEXT: blr
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entry:
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tail call i64 asm sideeffect "", "={lr}"()
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ret void
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}
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define dso_local void @EarlyClobberLR() local_unnamed_addr #0 {
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; PPC64LE-LABEL: EarlyClobberLR:
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; PPC64LE: # %bb.0: # %entry
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; PPC64LE-NEXT: mflr r0
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; PPC64LE-NEXT: stdu r1, -32(r1)
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; PPC64LE-NEXT: std r0, 48(r1)
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; PPC64LE-NEXT: #APP
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; PPC64LE-NEXT: #NO_APP
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; PPC64LE-NEXT: addi r1, r1, 32
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; PPC64LE-NEXT: ld r0, 16(r1)
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; PPC64LE-NEXT: mtlr r0
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; PPC64LE-NEXT: blr
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;
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; PPC64BE-LABEL: EarlyClobberLR:
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; PPC64BE: # %bb.0: # %entry
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; PPC64BE-NEXT: mflr r0
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; PPC64BE-NEXT: stdu r1, -48(r1)
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; PPC64BE-NEXT: std r0, 64(r1)
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; PPC64BE-NEXT: #APP
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; PPC64BE-NEXT: #NO_APP
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; PPC64BE-NEXT: addi r1, r1, 48
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; PPC64BE-NEXT: ld r0, 16(r1)
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; PPC64BE-NEXT: mtlr r0
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; PPC64BE-NEXT: blr
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entry:
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tail call i64 asm sideeffect "", "=&{lr}"()
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ret void
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}
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define dso_local void @ClobberMulti() local_unnamed_addr #0 {
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; PPC64LE-LABEL: ClobberMulti:
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; PPC64LE: # %bb.0: # %entry
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; PPC64LE-NEXT: mflr r0
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; PPC64LE-NEXT: std r15, -136(r1) # 8-byte Folded Spill
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; PPC64LE-NEXT: std r16, -128(r1) # 8-byte Folded Spill
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; PPC64LE-NEXT: stdu r1, -176(r1)
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; PPC64LE-NEXT: std r0, 192(r1)
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; PPC64LE-NEXT: #APP
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; PPC64LE-NEXT: #NO_APP
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; PPC64LE-NEXT: addi r1, r1, 176
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; PPC64LE-NEXT: ld r0, 16(r1)
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; PPC64LE-NEXT: ld r16, -128(r1) # 8-byte Folded Reload
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; PPC64LE-NEXT: ld r15, -136(r1) # 8-byte Folded Reload
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; PPC64LE-NEXT: mtlr r0
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; PPC64LE-NEXT: blr
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;
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; PPC64BE-LABEL: ClobberMulti:
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; PPC64BE: # %bb.0: # %entry
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; PPC64BE-NEXT: mflr r0
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; PPC64BE-NEXT: stdu r1, -192(r1)
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; PPC64BE-NEXT: std r0, 208(r1)
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; PPC64BE-NEXT: std r15, 56(r1) # 8-byte Folded Spill
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; PPC64BE-NEXT: std r16, 64(r1) # 8-byte Folded Spill
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; PPC64BE-NEXT: #APP
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; PPC64BE-NEXT: #NO_APP
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; PPC64BE-NEXT: ld r16, 64(r1) # 8-byte Folded Reload
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; PPC64BE-NEXT: ld r15, 56(r1) # 8-byte Folded Reload
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; PPC64BE-NEXT: addi r1, r1, 192
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; PPC64BE-NEXT: ld r0, 16(r1)
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; PPC64BE-NEXT: mtlr r0
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; PPC64BE-NEXT: blr
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entry:
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tail call void asm sideeffect "", "~{lr},~{r15},~{r16}"()
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ret void
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}
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attributes #0 = { nounwind }
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