diff options
author | Chris Lattner <sabre@nondot.org> | 2010-06-26 22:18:28 +0000 |
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committer | Chris Lattner <sabre@nondot.org> | 2010-06-26 22:18:28 +0000 |
commit | 640d3267228415328c0feb2bcc35757230ab4db7 (patch) | |
tree | f0c09c658ded6761213023fd91baf3dee72f62b6 /test/CodeGen/integer-overflow.c | |
parent | 8c11a65c18ae607b7073e1e451264492d2297726 (diff) |
fix inc/dec to honor -fwrapv and -ftrapv, implementing PR7426.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106962 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/integer-overflow.c')
-rw-r--r-- | test/CodeGen/integer-overflow.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/test/CodeGen/integer-overflow.c b/test/CodeGen/integer-overflow.c index dea3d0a1a3..9bed741b32 100644 --- a/test/CodeGen/integer-overflow.c +++ b/test/CodeGen/integer-overflow.c @@ -21,13 +21,25 @@ void test1() { // TRAPV: llvm.ssub.with.overflow.i32 f11G = a - b; - // DEFAULT: sub nsw i32 0, - // WRAPV: sub i32 0, - // TRAPV: llvm.ssub.with.overflow.i32 - f11G = -a; - // DEFAULT: mul nsw i32 // WRAPV: mul i32 // TRAPV: llvm.smul.with.overflow.i32 f11G = a * b; + + // DEFAULT: sub nsw i32 0, + // WRAPV: sub i32 0, + // TRAPV: llvm.ssub.with.overflow.i32(i32 0 + f11G = -a; + + // PR7426 - Overflow checking for increments. + + // DEFAULT: add nsw i32 {{.*}}, 1 + // WRAPV: add i32 {{.*}}, 1 + // TRAPV: llvm.sadd.with.overflow.i32({{.*}}, i32 1) + ++a; + + // DEFAULT: add nsw i32 {{.*}}, -1 + // WRAPV: add i32 {{.*}}, -1 + // TRAPV: llvm.sadd.with.overflow.i32({{.*}}, i32 -1) + --a; } |