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4e50d0475a
Just as as llvm IR supports explicitly specifying numeric value ids for instructions, and emits them by default in textual output, now do the same for blocks. This is a slightly incompatible change in the textual IR format. Previously, llvm would parse numeric labels as string names. E.g. define void @f() { br label %"55" 55: ret void } defined a label *named* "55", even without needing to be quoted, while the reference required quoting. Now, if you intend a block label which looks like a value number to be a name, you must quote it in the definition too (e.g. `"55":`). Previously, llvm would print nameless blocks only as a comment, and would omit it if there was no predecessor. This could cause confusion for readers of the IR, just as unnamed instructions did prior to the addition of "%5 = " syntax, back in 2008 (PR2480). Now, it will always print a label for an unnamed block, with the exception of the entry block. (IMO it may be better to print it for the entry-block as well. However, that requires updating many more tests.) Thus, the following is supported, and is the canonical printing: define i32 @f(i32, i32) { %3 = add i32 %0, %1 br label %4 4: ret i32 %3 } New test cases covering this behavior are added, and other tests updated as required. Differential Revision: https://reviews.llvm.org/D58548 llvm-svn: 356789 |
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hoist-call.ll | ||
hoist-convergent.ll | ||
hoist-inline.ll | ||
hoist-md.ll | ||
hoist-more-than-two-branches.ll | ||
hoist-mssa.ll | ||
hoist-newgvn.ll | ||
hoist-pr20242.ll | ||
hoist-pr22005.ll | ||
hoist-pr28606.ll | ||
hoist-pr28933.ll | ||
hoist-pr31891.ll | ||
hoist-recursive-geps.ll | ||
hoist-simplify-phi.ll | ||
hoist-unsafe-pr31729.ll | ||
hoist-very-busy.ll | ||
hoist.ll | ||
infinite-loop-direct.ll | ||
infinite-loop-indirect.ll | ||
int_sideeffect.ll | ||
ld_hoist1.ll | ||
ld_hoist_st_sink.ll | ||
non-trivial-phi.ll | ||
pr28626.ll | ||
pr29031.ll | ||
pr29034.ll | ||
pr30216.ll | ||
pr30499.ll | ||
pr35222-hoist-load.ll | ||
pr36787.ll | ||
pr37445.ll | ||
pr37808.ll | ||
pr38807.ll |