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https://github.com/RPCS3/llvm-mirror.git
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363ccb5889
Duplicating instructions can lead to code size increases but using a threshold of 3 is good for reducing code size. Differential Revision: https://reviews.llvm.org/D72916
153 lines
8.1 KiB
LLVM
153 lines
8.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -jump-threading -S %s -o - | FileCheck %s --check-prefix=DEFAULT
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; RUN: opt -jump-threading -S -jump-threading-threshold=6 %s -o - | FileCheck %s --check-prefix=OVERIDE
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@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
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define i32 @test_minsize(i32 %argc, i8** nocapture readonly %argv) local_unnamed_addr #0 {
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; DEFAULT-LABEL: @test_minsize(
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; DEFAULT-NEXT: entry:
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; DEFAULT-NEXT: [[CMP:%.*]] = icmp eq i32 [[ARGC:%.*]], 2
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; DEFAULT-NEXT: br i1 [[CMP]], label [[COND_TRUE:%.*]], label [[COND_END:%.*]]
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; DEFAULT: cond.true:
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; DEFAULT-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8*, i8** [[ARGV:%.*]], i32 1
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; DEFAULT-NEXT: [[TMP0:%.*]] = load i8*, i8** [[ARRAYIDX]], align 4
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; DEFAULT-NEXT: [[CALL:%.*]] = tail call i32 @atoi(i8* [[TMP0]])
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; DEFAULT-NEXT: br label [[COND_END]]
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; DEFAULT: cond.end:
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; DEFAULT-NEXT: [[COND:%.*]] = phi i32 [ [[CALL]], [[COND_TRUE]] ], [ 46, [[ENTRY:%.*]] ]
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; DEFAULT-NEXT: [[TMP1:%.*]] = mul i32 [[COND]], [[COND]]
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; DEFAULT-NEXT: [[TMP2:%.*]] = mul i32 [[TMP1]], [[TMP1]]
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; DEFAULT-NEXT: [[TMP3:%.*]] = mul i32 [[COND]], [[TMP2]]
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; DEFAULT-NEXT: [[TMP4:%.*]] = icmp sgt i32 [[COND]], 0
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; DEFAULT-NEXT: br i1 [[TMP4]], label [[TMP5:%.*]], label [[TMP6:%.*]]
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; DEFAULT: 5:
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; DEFAULT-NEXT: br label [[TMP6]]
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; DEFAULT: 6:
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; DEFAULT-NEXT: [[TMP7:%.*]] = phi i32 [ [[COND]], [[TMP5]] ], [ 0, [[COND_END]] ]
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; DEFAULT-NEXT: [[TMP8:%.*]] = mul i32 [[TMP3]], [[TMP7]]
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; DEFAULT-NEXT: [[CALL33:%.*]] = tail call i32 (i8*, ...) @printf(i8* nonnull dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), i32 [[TMP8]])
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; DEFAULT-NEXT: ret i32 0
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;
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; OVERIDE-LABEL: @test_minsize(
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; OVERIDE-NEXT: entry:
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; OVERIDE-NEXT: [[CMP:%.*]] = icmp eq i32 [[ARGC:%.*]], 2
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; OVERIDE-NEXT: br i1 [[CMP]], label [[COND_END:%.*]], label [[COND_END_THREAD:%.*]]
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; OVERIDE: cond.end:
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; OVERIDE-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8*, i8** [[ARGV:%.*]], i32 1
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; OVERIDE-NEXT: [[TMP0:%.*]] = load i8*, i8** [[ARRAYIDX]], align 4
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; OVERIDE-NEXT: [[CALL:%.*]] = tail call i32 @atoi(i8* [[TMP0]])
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; OVERIDE-NEXT: [[TMP1:%.*]] = mul i32 [[CALL]], [[CALL]]
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; OVERIDE-NEXT: [[TMP2:%.*]] = mul i32 [[TMP1]], [[TMP1]]
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; OVERIDE-NEXT: [[TMP3:%.*]] = mul i32 [[CALL]], [[TMP2]]
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; OVERIDE-NEXT: [[TMP4:%.*]] = icmp sgt i32 [[CALL]], 0
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; OVERIDE-NEXT: br i1 [[TMP4]], label [[COND_END_THREAD]], label [[TMP6:%.*]]
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; OVERIDE: cond.end.thread:
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; OVERIDE-NEXT: [[TMP5:%.*]] = phi i32 [ [[TMP3]], [[COND_END]] ], [ 205962976, [[ENTRY:%.*]] ]
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; OVERIDE-NEXT: [[COND2:%.*]] = phi i32 [ [[CALL]], [[COND_END]] ], [ 46, [[ENTRY]] ]
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; OVERIDE-NEXT: br label [[TMP6]]
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; OVERIDE: 6:
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; OVERIDE-NEXT: [[TMP7:%.*]] = phi i32 [ [[TMP5]], [[COND_END_THREAD]] ], [ [[TMP3]], [[COND_END]] ]
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; OVERIDE-NEXT: [[TMP8:%.*]] = phi i32 [ [[COND2]], [[COND_END_THREAD]] ], [ 0, [[COND_END]] ]
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; OVERIDE-NEXT: [[TMP9:%.*]] = mul i32 [[TMP7]], [[TMP8]]
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; OVERIDE-NEXT: [[CALL33:%.*]] = tail call i32 (i8*, ...) @printf(i8* nonnull dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), i32 [[TMP9]])
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; OVERIDE-NEXT: ret i32 0
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;
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entry:
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%cmp = icmp eq i32 %argc, 2
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br i1 %cmp, label %cond.true, label %cond.end
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cond.true: ; preds = %entry
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%arrayidx = getelementptr inbounds i8*, i8** %argv, i32 1
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%0 = load i8*, i8** %arrayidx, align 4
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%call = tail call i32 @atoi(i8* %0)
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br label %cond.end
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cond.end: ; preds = %entry, %cond.true
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%cond = phi i32 [ %call, %cond.true ], [ 46, %entry ]
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%1 = mul i32 %cond, %cond
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%2 = mul i32 %1, %1
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%3 = mul i32 %cond, %2
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%4 = icmp sgt i32 %cond, 0
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%spec.select = select i1 %4, i32 %cond, i32 0
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%5 = mul i32 %3, %spec.select
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%call33 = tail call i32 (i8*, ...) @printf(i8* nonnull dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), i32 %5) #4
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ret i32 0
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}
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define i32 @test_optsize(i32 %argc, i8** nocapture readonly %argv) local_unnamed_addr #1 {
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; DEFAULT-LABEL: @test_optsize(
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; DEFAULT-NEXT: entry:
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; DEFAULT-NEXT: [[CMP:%.*]] = icmp eq i32 [[ARGC:%.*]], 2
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; DEFAULT-NEXT: br i1 [[CMP]], label [[COND_END:%.*]], label [[COND_END_THREAD:%.*]]
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; DEFAULT: cond.end:
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; DEFAULT-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8*, i8** [[ARGV:%.*]], i32 1
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; DEFAULT-NEXT: [[TMP0:%.*]] = load i8*, i8** [[ARRAYIDX]], align 4
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; DEFAULT-NEXT: [[CALL:%.*]] = tail call i32 @atoi(i8* [[TMP0]])
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; DEFAULT-NEXT: [[TMP1:%.*]] = mul i32 [[CALL]], [[CALL]]
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; DEFAULT-NEXT: [[TMP2:%.*]] = mul i32 [[TMP1]], [[TMP1]]
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; DEFAULT-NEXT: [[TMP3:%.*]] = mul i32 [[CALL]], [[TMP2]]
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; DEFAULT-NEXT: [[TMP4:%.*]] = icmp sgt i32 [[CALL]], 0
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; DEFAULT-NEXT: br i1 [[TMP4]], label [[COND_END_THREAD]], label [[TMP6:%.*]]
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; DEFAULT: cond.end.thread:
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; DEFAULT-NEXT: [[TMP5:%.*]] = phi i32 [ [[TMP3]], [[COND_END]] ], [ 205962976, [[ENTRY:%.*]] ]
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; DEFAULT-NEXT: [[COND2:%.*]] = phi i32 [ [[CALL]], [[COND_END]] ], [ 46, [[ENTRY]] ]
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; DEFAULT-NEXT: br label [[TMP6]]
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; DEFAULT: 6:
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; DEFAULT-NEXT: [[TMP7:%.*]] = phi i32 [ [[TMP5]], [[COND_END_THREAD]] ], [ [[TMP3]], [[COND_END]] ]
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; DEFAULT-NEXT: [[TMP8:%.*]] = phi i32 [ [[COND2]], [[COND_END_THREAD]] ], [ 0, [[COND_END]] ]
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; DEFAULT-NEXT: [[TMP9:%.*]] = mul i32 [[TMP7]], [[TMP8]]
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; DEFAULT-NEXT: [[CALL33:%.*]] = tail call i32 (i8*, ...) @printf(i8* nonnull dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), i32 [[TMP9]])
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; DEFAULT-NEXT: ret i32 0
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;
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; OVERIDE-LABEL: @test_optsize(
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; OVERIDE-NEXT: entry:
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; OVERIDE-NEXT: [[CMP:%.*]] = icmp eq i32 [[ARGC:%.*]], 2
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; OVERIDE-NEXT: br i1 [[CMP]], label [[COND_END:%.*]], label [[COND_END_THREAD:%.*]]
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; OVERIDE: cond.end:
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; OVERIDE-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8*, i8** [[ARGV:%.*]], i32 1
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; OVERIDE-NEXT: [[TMP0:%.*]] = load i8*, i8** [[ARRAYIDX]], align 4
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; OVERIDE-NEXT: [[CALL:%.*]] = tail call i32 @atoi(i8* [[TMP0]])
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; OVERIDE-NEXT: [[TMP1:%.*]] = mul i32 [[CALL]], [[CALL]]
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; OVERIDE-NEXT: [[TMP2:%.*]] = mul i32 [[TMP1]], [[TMP1]]
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; OVERIDE-NEXT: [[TMP3:%.*]] = mul i32 [[CALL]], [[TMP2]]
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; OVERIDE-NEXT: [[TMP4:%.*]] = icmp sgt i32 [[CALL]], 0
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; OVERIDE-NEXT: br i1 [[TMP4]], label [[COND_END_THREAD]], label [[TMP6:%.*]]
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; OVERIDE: cond.end.thread:
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; OVERIDE-NEXT: [[TMP5:%.*]] = phi i32 [ [[TMP3]], [[COND_END]] ], [ 205962976, [[ENTRY:%.*]] ]
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; OVERIDE-NEXT: [[COND2:%.*]] = phi i32 [ [[CALL]], [[COND_END]] ], [ 46, [[ENTRY]] ]
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; OVERIDE-NEXT: br label [[TMP6]]
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; OVERIDE: 6:
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; OVERIDE-NEXT: [[TMP7:%.*]] = phi i32 [ [[TMP5]], [[COND_END_THREAD]] ], [ [[TMP3]], [[COND_END]] ]
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; OVERIDE-NEXT: [[TMP8:%.*]] = phi i32 [ [[COND2]], [[COND_END_THREAD]] ], [ 0, [[COND_END]] ]
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; OVERIDE-NEXT: [[TMP9:%.*]] = mul i32 [[TMP7]], [[TMP8]]
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; OVERIDE-NEXT: [[CALL33:%.*]] = tail call i32 (i8*, ...) @printf(i8* nonnull dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), i32 [[TMP9]])
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; OVERIDE-NEXT: ret i32 0
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;
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entry:
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%cmp = icmp eq i32 %argc, 2
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br i1 %cmp, label %cond.true, label %cond.end
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cond.true: ; preds = %entry
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%arrayidx = getelementptr inbounds i8*, i8** %argv, i32 1
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%0 = load i8*, i8** %arrayidx, align 4
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%call = tail call i32 @atoi(i8* %0)
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br label %cond.end
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cond.end: ; preds = %entry, %cond.true
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%cond = phi i32 [ %call, %cond.true ], [ 46, %entry ]
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%1 = mul i32 %cond, %cond
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%2 = mul i32 %1, %1
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%3 = mul i32 %cond, %2
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%4 = icmp sgt i32 %cond, 0
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%spec.select = select i1 %4, i32 %cond, i32 0
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%5 = mul i32 %3, %spec.select
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%call33 = tail call i32 (i8*, ...) @printf(i8* nonnull dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), i32 %5) #4
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ret i32 0
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}
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declare i32 @atoi(i8* nocapture) local_unnamed_addr
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declare i32 @printf(i8* nocapture readonly, ...) local_unnamed_addr
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attributes #0 = { minsize optsize }
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attributes #1 = { optsize }
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