3f8027fb67
This updates transform test cases for ADCE AddDiscriminators AggressiveInstCombine AlignmentFromAssumptions ArgumentPromotion BDCE CalledValuePropagation DCE Reg2Mem WholeProgramDevirt to use the -passes syntax when specifying the pipeline. Given that LLVM_ENABLE_NEW_PASS_MANAGER isn't set to off (which is a deprecated feature) the updated test cases already used the new pass manager, but they were using the legacy syntax when specifying the passes to run. This patch can be seen as a step toward deprecating that interface. This patch also removes some redundant RUN lines. Here I am referring to test cases that had multiple RUN lines verifying both the legacy "-passname" syntax and the new "-passes=passname" syntax. Since we switched the default pass manager to "new PM" both RUN lines have verified the new PM version of the pass (more or less wasting time running the same test twice), unless LLVM_ENABLE_NEW_PASS_MANAGER is set to "off". It is assumed that it is enough to run these tests with the new pass manager now. Differential Revision: https://reviews.llvm.org/D108472
57 lines
2.8 KiB
LLVM
57 lines
2.8 KiB
LLVM
; This testcase is distilled from the GNU rx package. The loop should be
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; removed but causes a problem when ADCE does. The source function is:
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; int rx_bitset_empty (int size, rx_Bitset set) {
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; int x;
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; RX_subset s;
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; s = set[0];
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; set[0] = 1;
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; for (x = rx_bitset_numb_subsets(size) - 1; !set[x]; --x)
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; ;
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; set[0] = s;
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; return !s;
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;}
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;
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; RUN: opt < %s -passes=adce
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; RUN: opt < %s -passes=adce -adce-remove-loops -S | FileCheck %s
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define i32 @rx_bitset_empty(i32 %size, i32* %set) {
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bb1:
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%reg110 = load i32, i32* %set ; <i32> [#uses=2]
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store i32 1, i32* %set
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%cast112 = sext i32 %size to i64 ; <i64> [#uses=1]
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%reg113 = add i64 %cast112, 31 ; <i64> [#uses=1]
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%reg114 = lshr i64 %reg113, 5 ; <i64> [#uses=2]
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%cast109 = trunc i64 %reg114 to i32 ; <i32> [#uses=1]
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%reg129 = add i32 %cast109, -1 ; <i32> [#uses=1]
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%reg114-idxcast = trunc i64 %reg114 to i32 ; <i32> [#uses=1]
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%reg114-idxcast-offset = add i32 %reg114-idxcast, 1073741823 ; <i32> [#uses=1]
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%reg114-idxcast-offset.upgrd.1 = zext i32 %reg114-idxcast-offset to i64 ; <i64> [#uses=1]
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%reg124 = getelementptr i32, i32* %set, i64 %reg114-idxcast-offset.upgrd.1 ; <i32*> [#uses=1]
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%reg125 = load i32, i32* %reg124 ; <i32> [#uses=1]
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%cond232 = icmp ne i32 %reg125, 0 ; <i1> [#uses=1]
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; CHECK: br label %bb3
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br i1 %cond232, label %bb3, label %bb2
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bb2: ; preds = %bb2, %bb1
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%cann-indvar = phi i32 [ 0, %bb1 ], [ %add1-indvar, %bb2 ] ; <i32> [#uses=2]
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%reg130-scale = mul i32 %cann-indvar, -1 ; <i32> [#uses=1]
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%reg130 = add i32 %reg130-scale, %reg129 ; <i32> [#uses=1]
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%add1-indvar = add i32 %cann-indvar, 1 ; <i32> [#uses=1]
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%reg130-idxcast = bitcast i32 %reg130 to i32 ; <i32> [#uses=1]
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%reg130-idxcast-offset = add i32 %reg130-idxcast, 1073741823 ; <i32> [#uses=1]
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%reg130-idxcast-offset.upgrd.2 = zext i32 %reg130-idxcast-offset to i64 ; <i64> [#uses=1]
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%reg118 = getelementptr i32, i32* %set, i64 %reg130-idxcast-offset.upgrd.2 ; <i32*> [#uses=1]
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%reg119 = load i32, i32* %reg118 ; <i32> [#uses=1]
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%cond233 = icmp eq i32 %reg119, 0 ; <i1> [#uses=1]
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br i1 %cond233, label %bb2, label %bb3
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bb3: ; preds = %bb2, %bb1
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store i32 %reg110, i32* %set
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%cast126 = zext i32 %reg110 to i64 ; <i64> [#uses=1]
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%reg127 = add i64 %cast126, -1 ; <i64> [#uses=1]
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%reg128 = lshr i64 %reg127, 63 ; <i64> [#uses=1]
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%cast120 = trunc i64 %reg128 to i32 ; <i32> [#uses=1]
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ret i32 %cast120
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}
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