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
216 lines
10 KiB
LLVM
216 lines
10 KiB
LLVM
; RUN: llc -verify-machineinstrs -mcpu=ppc64 -O0 -disable-fp-elim -fast-isel=false < %s | FileCheck %s
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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.s1 = type { i8 }
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%struct.s2 = type { i16 }
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%struct.s4 = type { i32 }
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%struct.t1 = type { i8 }
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%struct.t3 = type <{ i16, i8 }>
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%struct.t5 = type <{ i32, i8 }>
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%struct.t6 = type <{ i32, i16 }>
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%struct.t7 = type <{ i32, i16, i8 }>
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%struct.s3 = type { i16, i8 }
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%struct.s5 = type { i32, i8 }
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%struct.s6 = type { i32, i16 }
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%struct.s7 = type { i32, i16, i8 }
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%struct.t2 = type <{ i16 }>
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%struct.t4 = type <{ i32 }>
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@caller1.p1 = private unnamed_addr constant %struct.s1 { i8 1 }, align 1
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@caller1.p2 = private unnamed_addr constant %struct.s2 { i16 2 }, align 2
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@caller1.p3 = private unnamed_addr constant { i16, i8, i8 } { i16 4, i8 8, i8 undef }, align 2
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@caller1.p4 = private unnamed_addr constant %struct.s4 { i32 16 }, align 4
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@caller1.p5 = private unnamed_addr constant { i32, i8, [3 x i8] } { i32 32, i8 64, [3 x i8] undef }, align 4
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@caller1.p6 = private unnamed_addr constant { i32, i16, [2 x i8] } { i32 128, i16 256, [2 x i8] undef }, align 4
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@caller1.p7 = private unnamed_addr constant { i32, i16, i8, i8 } { i32 512, i16 1024, i8 -3, i8 undef }, align 4
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@caller2.p1 = private unnamed_addr constant %struct.t1 { i8 1 }, align 1
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@caller2.p2 = private unnamed_addr constant { i16 } { i16 2 }, align 1
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@caller2.p3 = private unnamed_addr constant %struct.t3 <{ i16 4, i8 8 }>, align 1
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@caller2.p4 = private unnamed_addr constant { i32 } { i32 16 }, align 1
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@caller2.p5 = private unnamed_addr constant %struct.t5 <{ i32 32, i8 64 }>, align 1
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@caller2.p6 = private unnamed_addr constant %struct.t6 <{ i32 128, i16 256 }>, align 1
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@caller2.p7 = private unnamed_addr constant %struct.t7 <{ i32 512, i16 1024, i8 -3 }>, align 1
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define i32 @caller1() nounwind {
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entry:
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%p1 = alloca %struct.s1, align 1
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%p2 = alloca %struct.s2, align 2
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%p3 = alloca %struct.s3, align 2
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%p4 = alloca %struct.s4, align 4
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%p5 = alloca %struct.s5, align 4
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%p6 = alloca %struct.s6, align 4
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%p7 = alloca %struct.s7, align 4
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%0 = bitcast %struct.s1* %p1 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %0, i8* getelementptr inbounds (%struct.s1, %struct.s1* @caller1.p1, i32 0, i32 0), i64 1, i32 1, i1 false)
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%1 = bitcast %struct.s2* %p2 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %1, i8* bitcast (%struct.s2* @caller1.p2 to i8*), i64 2, i32 2, i1 false)
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%2 = bitcast %struct.s3* %p3 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %2, i8* bitcast ({ i16, i8, i8 }* @caller1.p3 to i8*), i64 4, i32 2, i1 false)
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%3 = bitcast %struct.s4* %p4 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %3, i8* bitcast (%struct.s4* @caller1.p4 to i8*), i64 4, i32 4, i1 false)
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%4 = bitcast %struct.s5* %p5 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %4, i8* bitcast ({ i32, i8, [3 x i8] }* @caller1.p5 to i8*), i64 8, i32 4, i1 false)
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%5 = bitcast %struct.s6* %p6 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %5, i8* bitcast ({ i32, i16, [2 x i8] }* @caller1.p6 to i8*), i64 8, i32 4, i1 false)
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%6 = bitcast %struct.s7* %p7 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %6, i8* bitcast ({ i32, i16, i8, i8 }* @caller1.p7 to i8*), i64 8, i32 4, i1 false)
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%call = call i32 @callee1(i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, %struct.s1* byval %p1, %struct.s2* byval %p2, %struct.s3* byval %p3, %struct.s4* byval %p4, %struct.s5* byval %p5, %struct.s6* byval %p6, %struct.s7* byval %p7)
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ret i32 %call
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; CHECK: stb {{[0-9]+}}, 119(1)
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; CHECK: sth {{[0-9]+}}, 126(1)
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; CHECK: stw {{[0-9]+}}, 132(1)
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; CHECK: stw {{[0-9]+}}, 140(1)
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; CHECK: std {{[0-9]+}}, 144(1)
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; CHECK: std {{[0-9]+}}, 152(1)
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; CHECK: std {{[0-9]+}}, 160(1)
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}
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
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define internal i32 @callee1(i32 %z1, i32 %z2, i32 %z3, i32 %z4, i32 %z5, i32 %z6, i32 %z7, i32 %z8, %struct.s1* byval %v1, %struct.s2* byval %v2, %struct.s3* byval %v3, %struct.s4* byval %v4, %struct.s5* byval %v5, %struct.s6* byval %v6, %struct.s7* byval %v7) nounwind {
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entry:
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%z1.addr = alloca i32, align 4
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%z2.addr = alloca i32, align 4
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%z3.addr = alloca i32, align 4
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%z4.addr = alloca i32, align 4
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%z5.addr = alloca i32, align 4
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%z6.addr = alloca i32, align 4
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%z7.addr = alloca i32, align 4
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%z8.addr = alloca i32, align 4
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store i32 %z1, i32* %z1.addr, align 4
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store i32 %z2, i32* %z2.addr, align 4
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store i32 %z3, i32* %z3.addr, align 4
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store i32 %z4, i32* %z4.addr, align 4
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store i32 %z5, i32* %z5.addr, align 4
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store i32 %z6, i32* %z6.addr, align 4
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store i32 %z7, i32* %z7.addr, align 4
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store i32 %z8, i32* %z8.addr, align 4
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%a = getelementptr inbounds %struct.s1, %struct.s1* %v1, i32 0, i32 0
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%0 = load i8, i8* %a, align 1
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%conv = zext i8 %0 to i32
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%a1 = getelementptr inbounds %struct.s2, %struct.s2* %v2, i32 0, i32 0
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%1 = load i16, i16* %a1, align 2
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%conv2 = sext i16 %1 to i32
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%add = add nsw i32 %conv, %conv2
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%a3 = getelementptr inbounds %struct.s3, %struct.s3* %v3, i32 0, i32 0
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%2 = load i16, i16* %a3, align 2
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%conv4 = sext i16 %2 to i32
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%add5 = add nsw i32 %add, %conv4
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%a6 = getelementptr inbounds %struct.s4, %struct.s4* %v4, i32 0, i32 0
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%3 = load i32, i32* %a6, align 4
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%add7 = add nsw i32 %add5, %3
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%a8 = getelementptr inbounds %struct.s5, %struct.s5* %v5, i32 0, i32 0
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%4 = load i32, i32* %a8, align 4
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%add9 = add nsw i32 %add7, %4
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%a10 = getelementptr inbounds %struct.s6, %struct.s6* %v6, i32 0, i32 0
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%5 = load i32, i32* %a10, align 4
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%add11 = add nsw i32 %add9, %5
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%a12 = getelementptr inbounds %struct.s7, %struct.s7* %v7, i32 0, i32 0
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%6 = load i32, i32* %a12, align 4
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%add13 = add nsw i32 %add11, %6
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ret i32 %add13
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; CHECK: lha {{[0-9]+}}, 126(1)
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; CHECK: lha {{[0-9]+}}, 132(1)
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; CHECK: lbz {{[0-9]+}}, 119(1)
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; CHECK: lwz {{[0-9]+}}, 140(1)
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; CHECK: lwz {{[0-9]+}}, 144(1)
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; CHECK: lwz {{[0-9]+}}, 152(1)
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; CHECK: lwz {{[0-9]+}}, 160(1)
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}
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define i32 @caller2() nounwind {
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entry:
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%p1 = alloca %struct.t1, align 1
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%p2 = alloca %struct.t2, align 1
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%p3 = alloca %struct.t3, align 1
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%p4 = alloca %struct.t4, align 1
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%p5 = alloca %struct.t5, align 1
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%p6 = alloca %struct.t6, align 1
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%p7 = alloca %struct.t7, align 1
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%0 = bitcast %struct.t1* %p1 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %0, i8* getelementptr inbounds (%struct.t1, %struct.t1* @caller2.p1, i32 0, i32 0), i64 1, i32 1, i1 false)
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%1 = bitcast %struct.t2* %p2 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %1, i8* bitcast ({ i16 }* @caller2.p2 to i8*), i64 2, i32 1, i1 false)
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%2 = bitcast %struct.t3* %p3 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %2, i8* bitcast (%struct.t3* @caller2.p3 to i8*), i64 3, i32 1, i1 false)
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%3 = bitcast %struct.t4* %p4 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %3, i8* bitcast ({ i32 }* @caller2.p4 to i8*), i64 4, i32 1, i1 false)
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%4 = bitcast %struct.t5* %p5 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %4, i8* bitcast (%struct.t5* @caller2.p5 to i8*), i64 5, i32 1, i1 false)
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%5 = bitcast %struct.t6* %p6 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %5, i8* bitcast (%struct.t6* @caller2.p6 to i8*), i64 6, i32 1, i1 false)
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%6 = bitcast %struct.t7* %p7 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %6, i8* bitcast (%struct.t7* @caller2.p7 to i8*), i64 7, i32 1, i1 false)
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%call = call i32 @callee2(i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, %struct.t1* byval %p1, %struct.t2* byval %p2, %struct.t3* byval %p3, %struct.t4* byval %p4, %struct.t5* byval %p5, %struct.t6* byval %p6, %struct.t7* byval %p7)
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ret i32 %call
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; CHECK: stb {{[0-9]+}}, 119(1)
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; CHECK: sth {{[0-9]+}}, 126(1)
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; CHECK: stb {{[0-9]+}}, 135(1)
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; CHECK: sth {{[0-9]+}}, 133(1)
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; CHECK: stw {{[0-9]+}}, 140(1)
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; CHECK: stb {{[0-9]+}}, 151(1)
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; CHECK: stw {{[0-9]+}}, 147(1)
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; CHECK: sth {{[0-9]+}}, 158(1)
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; CHECK: stw {{[0-9]+}}, 154(1)
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; CHECK: stb {{[0-9]+}}, 167(1)
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; CHECK: sth {{[0-9]+}}, 165(1)
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; CHECK: stw {{[0-9]+}}, 161(1)
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}
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define internal i32 @callee2(i32 %z1, i32 %z2, i32 %z3, i32 %z4, i32 %z5, i32 %z6, i32 %z7, i32 %z8, %struct.t1* byval %v1, %struct.t2* byval %v2, %struct.t3* byval %v3, %struct.t4* byval %v4, %struct.t5* byval %v5, %struct.t6* byval %v6, %struct.t7* byval %v7) nounwind {
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entry:
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%z1.addr = alloca i32, align 4
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%z2.addr = alloca i32, align 4
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%z3.addr = alloca i32, align 4
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%z4.addr = alloca i32, align 4
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%z5.addr = alloca i32, align 4
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%z6.addr = alloca i32, align 4
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%z7.addr = alloca i32, align 4
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%z8.addr = alloca i32, align 4
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store i32 %z1, i32* %z1.addr, align 4
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store i32 %z2, i32* %z2.addr, align 4
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store i32 %z3, i32* %z3.addr, align 4
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store i32 %z4, i32* %z4.addr, align 4
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store i32 %z5, i32* %z5.addr, align 4
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store i32 %z6, i32* %z6.addr, align 4
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store i32 %z7, i32* %z7.addr, align 4
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store i32 %z8, i32* %z8.addr, align 4
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%a = getelementptr inbounds %struct.t1, %struct.t1* %v1, i32 0, i32 0
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%0 = load i8, i8* %a, align 1
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%conv = zext i8 %0 to i32
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%a1 = getelementptr inbounds %struct.t2, %struct.t2* %v2, i32 0, i32 0
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%1 = load i16, i16* %a1, align 1
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%conv2 = sext i16 %1 to i32
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%add = add nsw i32 %conv, %conv2
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%a3 = getelementptr inbounds %struct.t3, %struct.t3* %v3, i32 0, i32 0
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%2 = load i16, i16* %a3, align 1
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%conv4 = sext i16 %2 to i32
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%add5 = add nsw i32 %add, %conv4
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%a6 = getelementptr inbounds %struct.t4, %struct.t4* %v4, i32 0, i32 0
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%3 = load i32, i32* %a6, align 1
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%add7 = add nsw i32 %add5, %3
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%a8 = getelementptr inbounds %struct.t5, %struct.t5* %v5, i32 0, i32 0
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%4 = load i32, i32* %a8, align 1
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%add9 = add nsw i32 %add7, %4
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%a10 = getelementptr inbounds %struct.t6, %struct.t6* %v6, i32 0, i32 0
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%5 = load i32, i32* %a10, align 1
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%add11 = add nsw i32 %add9, %5
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%a12 = getelementptr inbounds %struct.t7, %struct.t7* %v7, i32 0, i32 0
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%6 = load i32, i32* %a12, align 1
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%add13 = add nsw i32 %add11, %6
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ret i32 %add13
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; CHECK: lha {{[0-9]+}}, 126(1)
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; CHECK: lha {{[0-9]+}}, 133(1)
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; CHECK: lbz {{[0-9]+}}, 119(1)
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; CHECK: lwz {{[0-9]+}}, 140(1)
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; CHECK: lwz {{[0-9]+}}, 147(1)
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; CHECK: lwz {{[0-9]+}}, 154(1)
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; CHECK: lwz {{[0-9]+}}, 161(1)
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}
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