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
103 lines
4.5 KiB
LLVM
103 lines
4.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -verify-machineinstrs < %s -mcpu=pwr9 -mtriple=powerpc64le-ibm-linux| FileCheck %s
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; This file verifies that for a given floating point load / store pair,
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; if the load value isn't used by any other operations,
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; then consider transforming the pair to integer load / store operations
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@a1 = dso_local local_unnamed_addr global double 0.000000e+00, align 8
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@a2 = dso_local local_unnamed_addr global double 0.000000e+00, align 8
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@a3 = dso_local local_unnamed_addr global double 0.000000e+00, align 8
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@a4 = dso_local local_unnamed_addr global double 0.000000e+00, align 8
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@a5 = dso_local local_unnamed_addr global double 0.000000e+00, align 8
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@a6 = dso_local local_unnamed_addr global double 0.000000e+00, align 8
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@a7 = dso_local local_unnamed_addr global double 0.000000e+00, align 8
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@a8 = dso_local local_unnamed_addr global double 0.000000e+00, align 8
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@a9 = dso_local local_unnamed_addr global double 0.000000e+00, align 8
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@a10 = dso_local local_unnamed_addr global double 0.000000e+00, align 8
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@a11 = dso_local local_unnamed_addr global double 0.000000e+00, align 8
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@a12 = dso_local local_unnamed_addr global double 0.000000e+00, align 8
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@a13 = dso_local local_unnamed_addr global double 0.000000e+00, align 8
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@a14 = dso_local local_unnamed_addr global double 0.000000e+00, align 8
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@a15 = dso_local local_unnamed_addr global double 0.000000e+00, align 8
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@a16 = dso_local local_unnamed_addr global ppc_fp128 0xM00000000000000000000000000000000, align 16
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@a17 = dso_local local_unnamed_addr global fp128 0xL00000000000000000000000000000000, align 16
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; Because this test function is trying to pass float argument by stack,
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; so the fpr is only used to load/store float argument
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define dso_local signext i32 @test() nounwind {
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; CHECK-LABEL: test:
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; CHECK: # %bb.0:
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; CHECK-NEXT: mflr 0
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; CHECK-NEXT: stdu 1, -192(1)
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; CHECK-NEXT: addis 3, 2, a1@toc@ha
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; CHECK-NEXT: std 0, 208(1)
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; CHECK-NEXT: addis 5, 2, a16@toc@ha
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; CHECK-NEXT: addis 6, 2, a17@toc@ha
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; CHECK-NEXT: addis 4, 2, a15@toc@ha
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; CHECK-NEXT: lfd 1, a1@toc@l(3)
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; CHECK-NEXT: addis 3, 2, a2@toc@ha
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; CHECK-NEXT: addi 5, 5, a16@toc@l
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; CHECK-NEXT: addi 6, 6, a17@toc@l
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; CHECK-NEXT: ld 4, a15@toc@l(4)
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; CHECK-NEXT: lfd 2, a2@toc@l(3)
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; CHECK-NEXT: addis 3, 2, a3@toc@ha
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; CHECK-NEXT: lxv 34, 0(6)
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; CHECK-NEXT: lxv 0, 0(5)
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; CHECK-NEXT: li 5, 152
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; CHECK-NEXT: lfd 3, a3@toc@l(3)
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; CHECK-NEXT: addis 3, 2, a4@toc@ha
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; CHECK-NEXT: lfd 4, a4@toc@l(3)
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; CHECK-NEXT: addis 3, 2, a5@toc@ha
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; CHECK-NEXT: lfd 5, a5@toc@l(3)
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; CHECK-NEXT: addis 3, 2, a6@toc@ha
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; CHECK-NEXT: lfd 6, a6@toc@l(3)
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; CHECK-NEXT: addis 3, 2, a7@toc@ha
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; CHECK-NEXT: lfd 7, a7@toc@l(3)
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; CHECK-NEXT: addis 3, 2, a8@toc@ha
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; CHECK-NEXT: lfd 8, a8@toc@l(3)
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; CHECK-NEXT: addis 3, 2, a9@toc@ha
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; CHECK-NEXT: lfd 9, a9@toc@l(3)
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; CHECK-NEXT: addis 3, 2, a10@toc@ha
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; CHECK-NEXT: lfd 10, a10@toc@l(3)
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; CHECK-NEXT: addis 3, 2, a11@toc@ha
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; CHECK-NEXT: lfd 11, a11@toc@l(3)
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; CHECK-NEXT: addis 3, 2, a12@toc@ha
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; CHECK-NEXT: lfd 12, a12@toc@l(3)
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; CHECK-NEXT: addis 3, 2, a13@toc@ha
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; CHECK-NEXT: lfd 13, a13@toc@l(3)
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; CHECK-NEXT: addis 3, 2, a14@toc@ha
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; CHECK-NEXT: ld 3, a14@toc@l(3)
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; CHECK-NEXT: stxvx 0, 1, 5
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; CHECK-NEXT: std 4, 144(1)
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; CHECK-NEXT: std 3, 136(1)
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; CHECK-NEXT: bl _Z3fooddddddddddddddd
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; CHECK-NEXT: nop
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; CHECK-NEXT: li 3, 0
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; CHECK-NEXT: addi 1, 1, 192
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; CHECK-NEXT: ld 0, 16(1)
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; CHECK-NEXT: mtlr 0
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; CHECK-NEXT: blr
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%1 = load double, ptr @a1, align 8
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%2 = load double, ptr @a2, align 8
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%3 = load double, ptr @a3, align 8
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%4 = load double, ptr @a4, align 8
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%5 = load double, ptr @a5, align 8
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%6 = load double, ptr @a6, align 8
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%7 = load double, ptr @a7, align 8
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%8 = load double, ptr @a8, align 8
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%9 = load double, ptr @a9, align 8
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%10 = load double, ptr @a10, align 8
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%11 = load double, ptr @a11, align 8
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%12 = load double, ptr @a12, align 8
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%13 = load double, ptr @a13, align 8
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%14 = load double, ptr @a14, align 8
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%15 = load double, ptr @a15, align 8
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%16 = load ppc_fp128, ptr @a16, align 16
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%17 = load fp128, ptr @a17, align 16
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tail call void @_Z3fooddddddddddddddd(double %1, double %2, double %3, double %4, double %5, double %6, double %7, double %8, double %9, double %10, double %11, double %12, double %13, double %14, double %15, ppc_fp128 %16, fp128 %17)
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ret i32 0
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}
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declare void @_Z3fooddddddddddddddd(double, double, double, double, double, double, double, double, double, double, double, double, double, double, double, ppc_fp128, fp128)
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