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eb30ce19c4
These intrinsics, not the icmp+select are the canonical form nowadays, so we might as well directly emit them. This should not cause any regressions, but if it does, then then they would needed to be fixed regardless. Note that this doesn't deal with `SCEVExpander::isHighCostExpansion()`, but that is a pessimization, not a correctness issue. Additionally, the non-intrinsic form has issues with undef, see https://reviews.llvm.org/D88287#2587863
72 lines
3.6 KiB
LLVM
72 lines
3.6 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: [[INDVARS_IV_NEXT:%.*]] = add i32 [[INDVARS_IV:%.*]], 1
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; CHECK-NEXT: [[TMP0:%.*]] = sub i32 [[TMP1:%.*]], [[SMAX:%.*]]
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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 [ [[TMP0]], [[BB1:%.*]] ]
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; CHECK-NEXT: ret void
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; CHECK: bb4:
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; CHECK-NEXT: [[INDVARS_IV]] = phi i32 [ [[INDVARS_IV_NEXT]], [[BB1]] ], [ undef, [[BB:%.*]] ]
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; CHECK-NEXT: [[SMAX]] = call i32 @llvm.smax.i32(i32 [[INDVARS_IV]], i32 36)
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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 [[INDVARS_IV]], 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: [[TMP1]] = add i32 [[TMP6]], [[INDVARS_IV]]
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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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