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3f23d4b8c3
tryLatency compares two sched candidates. For the top zone it prefers the one with lesser depth, but only if that depth is greater than the total latency of the instructions we've already scheduled -- otherwise its latency would be hidden and there would be no stall. Unfortunately it only tests the depth of one of the candidates. This can lead to situations where the TopDepthReduce heuristic does not kick in, but a lower priority heuristic chooses the other candidate, whose depth *is* greater than the already scheduled latency, which causes a stall. The fix is to apply the heuristic if the depth of *either* candidate is greater than the already scheduled latency. All this also applies to the BotHeightReduce heuristic in the bottom zone. Differential Revision: https://reviews.llvm.org/D72392
241 lines
7.9 KiB
LLVM
241 lines
7.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr9 < %s | FileCheck -check-prefix=CHECK-P9 %s
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; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr8 < %s | FileCheck -check-prefix=CHECK-P8 %s
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; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr7 < %s | FileCheck -check-prefix=CHECK-P7 %s
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define <8 x i16> @test_v8i16(<8 x i16> %m, <8 x i16> %n) {
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; CHECK-P9-LABEL: test_v8i16:
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; CHECK-P9: # %bb.0: # %entry
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; CHECK-P9-NEXT: vavguh 2, 3, 2
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; CHECK-P9-NEXT: blr
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;
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; CHECK-P8-LABEL: test_v8i16:
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; CHECK-P8: # %bb.0: # %entry
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; CHECK-P8-NEXT: vavguh 2, 3, 2
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; CHECK-P8-NEXT: blr
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;
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; CHECK-P7-LABEL: test_v8i16:
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; CHECK-P7: # %bb.0: # %entry
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; CHECK-P7-NEXT: vavguh 2, 3, 2
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; CHECK-P7-NEXT: blr
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entry:
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%add = add <8 x i16> %m, <i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1>
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%add1 = add <8 x i16> %add, %n
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%shr = lshr <8 x i16> %add1, <i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1>
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ret <8 x i16> %shr
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}
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define <8 x i16> @test_v8i16_sign(<8 x i16> %m, <8 x i16> %n) {
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; CHECK-P9-LABEL: test_v8i16_sign:
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; CHECK-P9: # %bb.0: # %entry
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; CHECK-P9-NEXT: vavgsh 2, 3, 2
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; CHECK-P9-NEXT: blr
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;
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; CHECK-P8-LABEL: test_v8i16_sign:
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; CHECK-P8: # %bb.0: # %entry
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; CHECK-P8-NEXT: vavgsh 2, 3, 2
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; CHECK-P8-NEXT: blr
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;
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; CHECK-P7-LABEL: test_v8i16_sign:
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; CHECK-P7: # %bb.0: # %entry
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; CHECK-P7-NEXT: vavgsh 2, 3, 2
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; CHECK-P7-NEXT: blr
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entry:
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%add = add <8 x i16> %m, <i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1>
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%add1 = add <8 x i16> %add, %n
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%shr = ashr <8 x i16> %add1, <i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1>
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ret <8 x i16> %shr
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}
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define <4 x i32> @test_v4i32(<4 x i32> %m, <4 x i32> %n) {
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; CHECK-P9-LABEL: test_v4i32:
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; CHECK-P9: # %bb.0: # %entry
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; CHECK-P9-NEXT: vavguw 2, 3, 2
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; CHECK-P9-NEXT: blr
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;
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; CHECK-P8-LABEL: test_v4i32:
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; CHECK-P8: # %bb.0: # %entry
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; CHECK-P8-NEXT: vavguw 2, 3, 2
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; CHECK-P8-NEXT: blr
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;
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; CHECK-P7-LABEL: test_v4i32:
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; CHECK-P7: # %bb.0: # %entry
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; CHECK-P7-NEXT: vavguw 2, 3, 2
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; CHECK-P7-NEXT: blr
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entry:
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%add = add <4 x i32> %m, <i32 1, i32 1, i32 1, i32 1>
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%add1 = add <4 x i32> %add, %n
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%shr = lshr <4 x i32> %add1, <i32 1, i32 1, i32 1, i32 1>
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ret <4 x i32> %shr
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}
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define <4 x i32> @test_v4i32_sign(<4 x i32> %m, <4 x i32> %n) {
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; CHECK-P9-LABEL: test_v4i32_sign:
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; CHECK-P9: # %bb.0: # %entry
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; CHECK-P9-NEXT: vavgsw 2, 3, 2
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; CHECK-P9-NEXT: blr
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;
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; CHECK-P8-LABEL: test_v4i32_sign:
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; CHECK-P8: # %bb.0: # %entry
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; CHECK-P8-NEXT: vavgsw 2, 3, 2
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; CHECK-P8-NEXT: blr
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;
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; CHECK-P7-LABEL: test_v4i32_sign:
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; CHECK-P7: # %bb.0: # %entry
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; CHECK-P7-NEXT: vavgsw 2, 3, 2
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; CHECK-P7-NEXT: blr
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entry:
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%add = add <4 x i32> %m, <i32 1, i32 1, i32 1, i32 1>
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%add1 = add <4 x i32> %add, %n
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%shr = ashr <4 x i32> %add1, <i32 1, i32 1, i32 1, i32 1>
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ret <4 x i32> %shr
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}
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define <16 x i8> @test_v16i8(<16 x i8> %m, <16 x i8> %n) {
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; CHECK-P9-LABEL: test_v16i8:
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; CHECK-P9: # %bb.0: # %entry
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; CHECK-P9-NEXT: vavgub 2, 3, 2
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; CHECK-P9-NEXT: blr
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;
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; CHECK-P8-LABEL: test_v16i8:
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; CHECK-P8: # %bb.0: # %entry
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; CHECK-P8-NEXT: vavgub 2, 3, 2
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; CHECK-P8-NEXT: blr
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;
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; CHECK-P7-LABEL: test_v16i8:
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; CHECK-P7: # %bb.0: # %entry
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; CHECK-P7-NEXT: vavgub 2, 3, 2
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; CHECK-P7-NEXT: blr
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entry:
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%add = add <16 x i8> %m, <i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1>
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%add1 = add <16 x i8> %add, %n
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%shr = lshr <16 x i8> %add1, <i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1>
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ret <16 x i8> %shr
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}
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define <16 x i8> @test_v16i8_sign(<16 x i8> %m, <16 x i8> %n) {
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; CHECK-P9-LABEL: test_v16i8_sign:
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; CHECK-P9: # %bb.0: # %entry
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; CHECK-P9-NEXT: vavgsb 2, 3, 2
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; CHECK-P9-NEXT: blr
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;
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; CHECK-P8-LABEL: test_v16i8_sign:
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; CHECK-P8: # %bb.0: # %entry
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; CHECK-P8-NEXT: vavgsb 2, 3, 2
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; CHECK-P8-NEXT: blr
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;
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; CHECK-P7-LABEL: test_v16i8_sign:
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; CHECK-P7: # %bb.0: # %entry
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; CHECK-P7-NEXT: vavgsb 2, 3, 2
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; CHECK-P7-NEXT: blr
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entry:
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%add = add <16 x i8> %m, <i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1>
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%add1 = add <16 x i8> %add, %n
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%shr = ashr <16 x i8> %add1, <i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1>
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ret <16 x i8> %shr
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}
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define <8 x i16> @test_v8i16_sign_negative(<8 x i16> %m, <8 x i16> %n) {
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; CHECK-P9-LABEL: test_v8i16_sign_negative:
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; CHECK-P9: # %bb.0: # %entry
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; CHECK-P9-NEXT: addis 3, 2, .LCPI6_0@toc@ha
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; CHECK-P9-NEXT: vadduhm 2, 2, 3
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; CHECK-P9-NEXT: addi 3, 3, .LCPI6_0@toc@l
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; CHECK-P9-NEXT: lxvx 35, 0, 3
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; CHECK-P9-NEXT: vadduhm 2, 2, 3
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; CHECK-P9-NEXT: vspltish 3, 1
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; CHECK-P9-NEXT: vsrah 2, 2, 3
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; CHECK-P9-NEXT: blr
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;
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; CHECK-P8-LABEL: test_v8i16_sign_negative:
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; CHECK-P8: # %bb.0: # %entry
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; CHECK-P8-NEXT: addis 3, 2, .LCPI6_0@toc@ha
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; CHECK-P8-NEXT: vadduhm 2, 2, 3
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; CHECK-P8-NEXT: vspltish 4, 1
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; CHECK-P8-NEXT: addi 3, 3, .LCPI6_0@toc@l
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; CHECK-P8-NEXT: lvx 3, 0, 3
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; CHECK-P8-NEXT: vadduhm 2, 2, 3
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; CHECK-P8-NEXT: vsrah 2, 2, 4
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; CHECK-P8-NEXT: blr
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;
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; CHECK-P7-LABEL: test_v8i16_sign_negative:
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; CHECK-P7: # %bb.0: # %entry
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; CHECK-P7-NEXT: addis 3, 2, .LCPI6_0@toc@ha
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; CHECK-P7-NEXT: vadduhm 2, 2, 3
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; CHECK-P7-NEXT: vspltish 4, 1
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; CHECK-P7-NEXT: addi 3, 3, .LCPI6_0@toc@l
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; CHECK-P7-NEXT: lvx 3, 0, 3
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; CHECK-P7-NEXT: vadduhm 2, 2, 3
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; CHECK-P7-NEXT: vsrah 2, 2, 4
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; CHECK-P7-NEXT: blr
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entry:
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%add = add <8 x i16> %m, <i16 1, i16 1, i16 1, i16 -1, i16 1, i16 1, i16 1, i16 1>
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%add1 = add <8 x i16> %add, %n
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%shr = ashr <8 x i16> %add1, <i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1>
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ret <8 x i16> %shr
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}
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define <4 x i32> @test_v4i32_negative(<4 x i32> %m, <4 x i32> %n) {
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; CHECK-P9-LABEL: test_v4i32_negative:
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; CHECK-P9: # %bb.0: # %entry
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; CHECK-P9-NEXT: xxlnor 34, 34, 34
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; CHECK-P9-NEXT: vsubuwm 2, 3, 2
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; CHECK-P9-NEXT: vspltisw 3, 2
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; CHECK-P9-NEXT: vsrw 2, 2, 3
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; CHECK-P9-NEXT: blr
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;
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; CHECK-P8-LABEL: test_v4i32_negative:
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; CHECK-P8: # %bb.0: # %entry
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; CHECK-P8-NEXT: xxlnor 34, 34, 34
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; CHECK-P8-NEXT: vspltisw 4, 2
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; CHECK-P8-NEXT: vsubuwm 2, 3, 2
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; CHECK-P8-NEXT: vsrw 2, 2, 4
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; CHECK-P8-NEXT: blr
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;
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; CHECK-P7-LABEL: test_v4i32_negative:
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; CHECK-P7: # %bb.0: # %entry
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; CHECK-P7-NEXT: xxlnor 34, 34, 34
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; CHECK-P7-NEXT: vspltisw 4, 2
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; CHECK-P7-NEXT: vsubuwm 2, 3, 2
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; CHECK-P7-NEXT: vsrw 2, 2, 4
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; CHECK-P7-NEXT: blr
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entry:
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%add = add <4 x i32> %m, <i32 1, i32 1, i32 1, i32 1>
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%add1 = add <4 x i32> %add, %n
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%shr = lshr <4 x i32> %add1, <i32 2, i32 2, i32 2, i32 2>
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ret <4 x i32> %shr
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}
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define <4 x i32> @test_v4i32_sign_negative(<4 x i32> %m, <4 x i32> %n) {
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; CHECK-P9-LABEL: test_v4i32_sign_negative:
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; CHECK-P9: # %bb.0: # %entry
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; CHECK-P9-NEXT: vadduwm 2, 2, 3
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; CHECK-P9-NEXT: xxleqv 35, 35, 35
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; CHECK-P9-NEXT: vadduwm 2, 2, 3
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; CHECK-P9-NEXT: vspltisw 3, 1
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; CHECK-P9-NEXT: vsraw 2, 2, 3
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; CHECK-P9-NEXT: blr
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;
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; CHECK-P8-LABEL: test_v4i32_sign_negative:
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; CHECK-P8: # %bb.0: # %entry
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; CHECK-P8-NEXT: xxleqv 36, 36, 36
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; CHECK-P8-NEXT: vadduwm 2, 2, 3
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; CHECK-P8-NEXT: vspltisw 3, 1
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; CHECK-P8-NEXT: vadduwm 2, 2, 4
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; CHECK-P8-NEXT: vsraw 2, 2, 3
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; CHECK-P8-NEXT: blr
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;
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; CHECK-P7-LABEL: test_v4i32_sign_negative:
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; CHECK-P7: # %bb.0: # %entry
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; CHECK-P7-NEXT: vspltisb 4, -1
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; CHECK-P7-NEXT: vadduwm 2, 2, 3
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; CHECK-P7-NEXT: vspltisw 3, 1
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; CHECK-P7-NEXT: vadduwm 2, 2, 4
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; CHECK-P7-NEXT: vsraw 2, 2, 3
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; CHECK-P7-NEXT: blr
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entry:
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%add = add <4 x i32> %m, <i32 -1, i32 -1, i32 -1, i32 -1>
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%add1 = add <4 x i32> %add, %n
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%shr = ashr <4 x i32> %add1, <i32 1, i32 1, i32 1, i32 1>
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ret <4 x i32> %shr
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}
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