af49bed933
After replacing a loop phi with the preheader value, it's usually possible to simplify some of the using instructions, so do that as part of replaceLoopPHINodesWithPreheaderValues(). Doing this as part of IndVars is valuable, because it may make GEPs in the loop have constant offsets and allow the following SROA run to succeed (as demonstrated in the PhaseOrdering test). Differential Revision: https://reviews.llvm.org/D129293
67 lines
3.2 KiB
LLVM
67 lines
3.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -indvars -S < %s | FileCheck %s
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128-ni:1-p2:32:8:8:32-ni:2"
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target triple = "x86_64-unknown-linux-gnu"
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define void @test() personality i32* ()* @snork {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: bb:
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; CHECK-NEXT: br label [[BB4:%.*]]
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; CHECK: bb1:
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; CHECK-NEXT: br i1 true, label [[BB2:%.*]], label [[BB4]]
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; CHECK: bb2:
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; CHECK-NEXT: [[TMP3:%.*]] = phi i32 [ undef, [[BB1:%.*]] ]
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; CHECK-NEXT: ret void
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; CHECK: bb4:
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; CHECK-NEXT: [[TMP6:%.*]] = invoke i32 @quux() [ "deopt"(i32 0, i32 0, i32 0, i32 180, i32 0, i32 25, i32 0, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null, i32 3, i32 undef, i32 3, i32 undef, i32 7, i8* null, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 4, double undef, i32 7, i8* null, i32 4, i64 undef, i32 7, i8* null, i32 0, i8 addrspace(1)* undef, i32 3, i32 undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 7, i8* null) ]
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; CHECK-NEXT: to label [[BB7:%.*]] unwind label [[BB15:%.*]]
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; CHECK: bb7:
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; CHECK-NEXT: br label [[BB9:%.*]]
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; CHECK: bb9:
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; CHECK-NEXT: br i1 true, label [[BB1]], label [[BB9]]
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; CHECK: bb15:
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; CHECK-NEXT: [[TMP16:%.*]] = landingpad { i8*, i32 }
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; CHECK-NEXT: cleanup
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; CHECK-NEXT: ret void
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;
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bb:
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br label %bb4
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bb1: ; preds = %bb9
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%tmp = phi i32 [ %tmp12, %bb9 ]
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br i1 undef, label %bb2, label %bb4
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bb2: ; preds = %bb1
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%tmp3 = phi i32 [ %tmp, %bb1 ]
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ret void
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bb4: ; preds = %bb1, %bb
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%tmp5 = phi i32 [ %tmp8, %bb1 ], [ undef, %bb ]
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%tmp6 = invoke i32 @quux() #2 [ "deopt"(i32 0, i32 0, i32 0, i32 180, i32 0, i32 25, i32 0, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null, i32 3, i32 %tmp5, i32 3, i32 undef, i32 7, i8* null, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 3, i32 undef, i32 4, double undef, i32 7, i8* null, i32 4, i64 undef, i32 7, i8* null, i32 0, i8 addrspace(1)* undef, i32 3, i32 undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 0, i8 addrspace(1)* undef, i32 7, i8* null) ]
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to label %bb7 unwind label %bb15
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bb7: ; preds = %bb4
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%tmp8 = add nsw i32 %tmp5, 1
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br label %bb9
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bb9: ; preds = %bb9, %bb7
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%tmp10 = phi i32 [ %tmp5, %bb7 ], [ %tmp13, %bb9 ]
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%tmp11 = phi i32 [ %tmp6, %bb7 ], [ %tmp12, %bb9 ]
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%tmp12 = add i32 %tmp11, -1
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%tmp13 = add nsw i32 %tmp10, 1
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%tmp14 = icmp sgt i32 %tmp10, 35
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br i1 %tmp14, label %bb1, label %bb9
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bb15: ; preds = %bb4
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%tmp16 = landingpad { i8*, i32 }
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cleanup
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ret void
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}
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declare i32* @snork()
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declare i32 @quux()
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