ce52b80744
This patch causes compile times for some patterns to explode. I have a (large, unreduced) test case that slows down by more than 20x and several test cases slow down by 2x. I'm sending some of the test cases directly to Nirav and following up with more details in the review log, but this should unblock anyone else hitting this. llvm-svn: 296862
49 lines
1.6 KiB
LLVM
49 lines
1.6 KiB
LLVM
; RUN: llc -verify-machineinstrs -mcpu=ppc64 -O0 -fast-isel=false < %s | FileCheck %s
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; This tests receiving and re-passing parameters consisting of structures
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; of size 3, 5, 6, and 7. They are to be found/placed right-adjusted in
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; the parameter registers.
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target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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%struct.S3 = type { [3 x i8] }
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%struct.S5 = type { [5 x i8] }
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%struct.S6 = type { [6 x i8] }
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%struct.S7 = type { [7 x i8] }
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define void @test(%struct.S3* byval %s3, %struct.S5* byval %s5, %struct.S6* byval %s6, %struct.S7* byval %s7) nounwind {
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entry:
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call void @check(%struct.S3* byval %s3, %struct.S5* byval %s5, %struct.S6* byval %s6, %struct.S7* byval %s7)
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ret void
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}
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; CHECK: std 6, 184(1)
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; CHECK: std 5, 176(1)
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; CHECK: std 4, 168(1)
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; CHECK: std 3, 160(1)
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; CHECK: lbz {{[0-9]+}}, 167(1)
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; CHECK: lhz {{[0-9]+}}, 165(1)
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; CHECK: stb {{[0-9]+}}, 55(1)
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; CHECK: sth {{[0-9]+}}, 53(1)
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; CHECK: lbz {{[0-9]+}}, 175(1)
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; CHECK: lwz {{[0-9]+}}, 171(1)
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; CHECK: stb {{[0-9]+}}, 63(1)
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; CHECK: stw {{[0-9]+}}, 59(1)
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; CHECK: lhz {{[0-9]+}}, 182(1)
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; CHECK: lwz {{[0-9]+}}, 178(1)
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; CHECK: sth {{[0-9]+}}, 70(1)
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; CHECK: stw {{[0-9]+}}, 66(1)
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; CHECK: lbz {{[0-9]+}}, 191(1)
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; CHECK: lhz {{[0-9]+}}, 189(1)
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; CHECK: lwz {{[0-9]+}}, 185(1)
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; CHECK: stb {{[0-9]+}}, 79(1)
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; CHECK: sth {{[0-9]+}}, 77(1)
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; CHECK: stw {{[0-9]+}}, 73(1)
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; CHECK: ld 6, 72(1)
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; CHECK: ld 5, 64(1)
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; CHECK: ld 4, 56(1)
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; CHECK: ld 3, 48(1)
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declare void @check(%struct.S3* byval, %struct.S5* byval, %struct.S6* byval, %struct.S7* byval)
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