diff options
Diffstat (limited to 'llvm/test/Transforms/BlockExtractor/extract-blocks-with-groups.ll')
| -rw-r--r-- | llvm/test/Transforms/BlockExtractor/extract-blocks-with-groups.ll | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/llvm/test/Transforms/BlockExtractor/extract-blocks-with-groups.ll b/llvm/test/Transforms/BlockExtractor/extract-blocks-with-groups.ll new file mode 100644 index 00000000000..0c5b173c1bf --- /dev/null +++ b/llvm/test/Transforms/BlockExtractor/extract-blocks-with-groups.ll @@ -0,0 +1,122 @@ +; Extract the 'if', 'then', and 'else' blocks into the same function. +; RUN: echo 'foo if,then,else' > %t +; Make sure we can still extract a single basic block +; RUN: echo 'foo end' >> %t +; RUN: echo 'bar bb14,bb20' >> %t +; RUN: opt -S -extract-blocks -extract-blocks-file=%t %s | FileCheck %s + +; CHECK-LABEL: foo +; +; CHECK: if: +; The diamond will produce an i32 value, make sure we account for that. +; CHECK: [[RES_VAL_ADDR:%[^ ]*]] = alloca i32 +; CHECK-NEXT: br label %[[FOO_DIAMOND_LABEL:.*$]] +; +; The if-then-else blocks should be in just one function. +; CHECK: [[FOO_DIAMOND_LABEL]]: +; CHECK: call void [[FOO_DIAMOND:@[^(]*]](i32 %arg1, i32 %arg, i32* [[RES_VAL_ADDR]]) +; CHECK-NEXT: [[RES_VAL:%[^ ]*]] = load i32, i32* [[RES_VAL_ADDR]] +; Then it should directly jump to end. +; CHECK: br label %[[FOO_END_LABEL:.*$]] +; +; End should have been extracted into its own function. +; CHECK: [[FOO_END_LABEL]]: +; CHECK: [[CMP:%[^ ]*]] = call i1 [[FOO_END:@[^(]*]](i32 [[RES_VAL]], i32 %arg) +; CHECK-NEXT: br i1 [[CMP]], label %ret0, label %ret1 +define i32 @foo(i32 %arg, i32 %arg1) { +if: + %tmp5 = icmp sgt i32 %arg, 0 + %tmp8 = icmp sgt i32 %arg1, 0 + %or.cond = and i1 %tmp5, %tmp8 + br i1 %or.cond, label %then, label %else + +then: + %tmp12 = shl i32 %arg1, 2 + %tmp13 = add nsw i32 %tmp12, %arg + br label %end + +else: + %tmp22 = mul nsw i32 %arg, 3 + %tmp24 = sdiv i32 %arg1, 6 + %tmp25 = add nsw i32 %tmp24, %tmp22 + br label %end + +end: + %tmp.0 = phi i32 [ %tmp13, %then ], [ %tmp25, %else ] + %and0 = and i32 %tmp.0, %arg + %cmp1 = icmp slt i32 %and0, 0 + br i1 %cmp1, label %ret0, label %ret1 + +ret0: + ret i32 0 + +ret1: + ret i32 1 +} + +; CHECK-LABEL: bar +; +; Check that we extracted bb14 and bb20 in their own (shared) function. +; CHECK: bb +; CHECK: br i1 %or.cond, label %bb9, label %[[BAR_DIAMOND_LABEL:.*$]] +; +; CHECK: [[BAR_DIAMOND_LABEL]]: +; CHECK: [[CMP:%[^ ]*]] = call i1 [[BAR_DIAMOND:@[^(]*]](i32 %arg1, i32 %arg, i32* +; CHECK: br i1 [[CMP]], label %bb26, label %bb30 +define i32 @bar(i32 %arg, i32 %arg1) { +bb: + %tmp5 = icmp sgt i32 %arg, 0 + %tmp8 = icmp sgt i32 %arg1, 0 + %or.cond = and i1 %tmp5, %tmp8 + br i1 %or.cond, label %bb9, label %bb14 + +bb9: ; preds = %bb + %tmp12 = shl i32 %arg1, 2 + %tmp13 = add nsw i32 %tmp12, %arg + br label %bb30 + +bb14: ; preds = %bb + %0 = and i32 %arg1, %arg + %1 = icmp slt i32 %0, 0 + br i1 %1, label %bb20, label %bb26 + +bb20: ; preds = %bb14 + %tmp22 = mul nsw i32 %arg, 3 + %tmp24 = sdiv i32 %arg1, 6 + %tmp25 = add nsw i32 %tmp24, %tmp22 + br label %bb30 + +bb26: ; preds = %bb14 + %tmp29 = sub nsw i32 %arg, %arg1 + br label %bb30 + +bb30: ; preds = %bb26, %bb20, %bb9 + %tmp.0 = phi i32 [ %tmp13, %bb9 ], [ %tmp25, %bb20 ], [ %tmp29, %bb26 ] + ret i32 %tmp.0 +} + +; Check that we extracted the three asked basic blocks. +; CHECK: [[FOO_DIAMOND]] +; CHECK: then: +; Make sure the function doesn't end in the middle of the +; list of the blocks we are checking. +; CHECK-NOT: } +; CHECK: else: +; CHECK-NOT: } +; The name of the if block is weird because it had to be split +; since it was the name of the entry of the original function. +; CHECK: if.split: +; CHECK: } + +; CHECK: [[FOO_END]] +; CHECK-NOT: } +; CHECK: end: +; CHECK: } + +; Check that we extracted the two asked basic blocks. +; CHECK: [[BAR_DIAMOND]] +; CHECK-NOT: } +; CHECK: bb14: +; CHECK-NOT: } +; CHECK: bb20: +; CHECK: } |
