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| author | Chris Lattner <sabre@nondot.org> | 2009-11-26 23:41:07 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2009-11-26 23:41:07 +0000 |
| commit | 9bd2136ca3c0494717cf4a7c6f6bb604387e7e90 (patch) | |
| tree | 85ecb01a46993184ca60939734f6b9e57cca1b5c /llvm/lib/Target | |
| parent | dfaa592de16fa12490e8417bf6d16382b98943c6 (diff) | |
| download | bcm5719-llvm-9bd2136ca3c0494717cf4a7c6f6bb604387e7e90.tar.gz bcm5719-llvm-9bd2136ca3c0494717cf4a7c6f6bb604387e7e90.zip | |
Teach memdep to phi translate bitcasts. This allows us to compile
the example in GCC PR16799 to:
LBB1_2: ## %bb1
movl %eax, %eax
subq %rax, %rdi
movq %rdi, (%rcx)
movl (%rdi), %eax
testl %eax, %eax
je LBB1_2
instead of:
LBB1_2: ## %bb1
movl (%rdi), %ecx
subq %rcx, %rdi
movq %rdi, (%rax)
cmpl $0, (%rdi)
je LBB1_2
llvm-svn: 89978
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/README.txt | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/llvm/lib/Target/README.txt b/llvm/lib/Target/README.txt index 2db580824c2..6bac630f503 100644 --- a/llvm/lib/Target/README.txt +++ b/llvm/lib/Target/README.txt @@ -1284,8 +1284,6 @@ http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35287 [LPRE crit edge splitting] http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34677 (licm does this, LPRE crit edge) llvm-gcc t2.c -S -o - -O0 -emit-llvm | llvm-as | opt -mem2reg -simplifycfg -gvn | llvm-dis -http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16799 [BITCAST PHI TRANS] - //===---------------------------------------------------------------------===// Type based alias analysis: |
