| Owen Anderson | 10d1667 | 2008-08-16 00:00:54 +0000 | [diff] [blame] | 1 | ; RUN: llvm-as < %s | opt -basicaa -gvn -instcombine |\ |
| Tanya Lattner | a695f01 | 2008-02-14 06:56:27 +0000 | [diff] [blame] | 2 | ; RUN: llvm-dis | grep {load i32\\* %A} |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 3 | |
| Tanya Lattner | a695f01 | 2008-02-14 06:56:27 +0000 | [diff] [blame] | 4 | declare double* @useit(i32*) |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 5 | |
| Tanya Lattner | a695f01 | 2008-02-14 06:56:27 +0000 | [diff] [blame] | 6 | define i32 @foo(i32 %Amt) { |
| 7 | %A = malloc i32, i32 %Amt | ||||
| 8 | %P = call double* @useit(i32* %A) | ||||
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 9 | |
| Tanya Lattner | a695f01 | 2008-02-14 06:56:27 +0000 | [diff] [blame] | 10 | %X = load i32* %A |
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 11 | store double 0.0, double* %P |
| Tanya Lattner | a695f01 | 2008-02-14 06:56:27 +0000 | [diff] [blame] | 12 | %Y = load i32* %A |
| 13 | %Z = sub i32 %X, %Y | ||||
| 14 | ret i32 %Z | ||||
| Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 15 | } |