tests_lit/llvm2ice_tests/regalloc_evict_non_overlap.ll - Issue 417933004: Subzero: Fix a regalloc eviction bug.

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Side by Side Diff: tests_lit/llvm2ice_tests/regalloc_evict_non_overlap.ll

Issue 417933004: Subzero: Fix a regalloc eviction bug. (Closed) Base URL: https://gerrit.chromium.org/gerrit/p/native_client/pnacl-subzero.git@master

Patch Set: Add Jan's test Created 6 years, 4 months ago

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	1 ; Bugpoint-reduced example that demonstrated a bug (assertion failure)

	2 ; in register allocation. See

	3 ; https://code.google.com/p/nativeclient/issues/detail?id=3903 .

	4 ;

	5 ; RUN: %llvm2ice -O2 --verbose regalloc %s

	6

	7 ; ModuleID = 'bugpoint-reduced-simplified.ll'

	8 target datalayout = "e-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64 :64:64-p:32:32:32-v128:32:32"

	9 target triple = "i386-pc-linux-gnu"

	10

	11 define void @foo() {

	12 bb:

	13 br i1 undef, label %bb13, label %bb14

	14

	15 bb13:

	16 unreachable

	17

	18 bb14:

	19 br i1 undef, label %bb50, label %bb16

	20

	21 bb15: ; preds = %bb42, %bb35

	22 br i1 undef, label %bb50, label %bb16

	23

	24 bb16: ; preds = %bb49, %bb15, %bb14

	25 %tmp = phi i32 [ undef, %bb14 ], [ %tmp18, %bb49 ], [ undef, %bb15 ]

	26 br label %bb17

	27

	28 bb17: ; preds = %bb48, %bb16

	29 %tmp18 = phi i32 [ undef, %bb16 ], [ undef, %bb48 ]

	30 %tmp19 = add i32 %tmp18, 4

	31 br i1 undef, label %bb21, label %bb46

	32

	33 bb21: ; preds = %bb27, %bb17

	34 %tmp22 = phi i32 [ undef, %bb17 ], [ %tmp30, %bb27 ]

	35 %tmp23 = add i32 undef, -1

	36 %tmp24 = add i32 undef, undef

	37 %tmp25 = load i32* undef, align 1

	38 %tmp26 = icmp eq i32 undef, %tmp22

	39 br i1 %tmp26, label %bb34, label %bb32

	40

	41 bb27: ; preds = %bb42, %bb34

	42 %tmp28 = icmp sgt i32 %tmp23, 0

	43 %tmp29 = inttoptr i32 %tmp19 to i32*

	44 %tmp30 = load i32* %tmp29, align 1

	45 br i1 %tmp28, label %bb21, label %bb46

	46

	47 bb32: ; preds = %bb21

	48 %tmp33 = inttoptr i32 %tmp24 to i32*

	49 store i32 0, i32* %tmp33, align 1

	50 br label %bb34

	51

	52 bb34: ; preds = %bb32, %bb31

	53 br i1 undef, label %bb27, label %bb35

	54

	55 bb35: ; preds = %bb34

	56 %tmp40 = inttoptr i32 %tmp25 to void (i32)*

	57 call void %tmp40(i32 undef)

	58 br i1 undef, label %bb42, label %bb15

	59

	60 bb42: ; preds = %bb35

	61 %tmp43 = inttoptr i32 %tmp to i32*

	62 %tmp44 = load i32* %tmp43, align 1

	63 %tmp45 = icmp eq i32 %tmp44, %tmp18

	64 br i1 %tmp45, label %bb27, label %bb15

	65

	66 bb46: ; preds = %bb27, %bb17

	67 br i1 undef, label %bb47, label %bb49

	68

	69 bb47: ; preds = %bb46

	70 br i1 undef, label %bb50, label %bb48

	71

	72 bb48: ; preds = %bb47

	73 br i1 undef, label %bb50, label %bb17

	74

	75 bb49: ; preds = %bb46

	76 br i1 undef, label %bb50, label %bb16

	77

	78 bb50: ; preds = %bb49, %bb48, %bb47, %bb15, %bb14

	79 unreachable

	80 }

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