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| author | Tristan Gingold <tgingold@free.fr> | 2017-05-17 06:54:29 +0200 |
|---|---|---|
| committer | Tristan Gingold <tgingold@free.fr> | 2017-05-18 07:59:34 +0200 |
| commit | 2e52e07e6a18a89d06060f09f952d78d704d0c00 (patch) | |
| tree | 2163084516951340b979aed2827eba402a51b4b1 /src/ortho/mcode | |
| parent | 513bbe9ca27c2c3beaf315df8280586a21cae76a (diff) | |
| download | ghdl-2e52e07e6a18a89d06060f09f952d78d704d0c00.tar.gz ghdl-2e52e07e6a18a89d06060f09f952d78d704d0c00.tar.bz2 ghdl-2e52e07e6a18a89d06060f09f952d78d704d0c00.zip | |
ortho/mcode: detect overflow for i32 and i64 mul.
Diffstat (limited to 'src/ortho/mcode')
| -rw-r--r-- | src/ortho/mcode/ortho_code-x86-emits.adb | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/ortho/mcode/ortho_code-x86-emits.adb b/src/ortho/mcode/ortho_code-x86-emits.adb index 28f621af2..0e62eb6e3 100644 --- a/src/ortho/mcode/ortho_code-x86-emits.adb +++ b/src/ortho/mcode/ortho_code-x86-emits.adb @@ -2267,8 +2267,14 @@ package body Ortho_Code.X86.Emits is Gen_Mul (Stmt, Sz_32); when Mode_I32 => Gen_Grp3_Insn (Opc2_Grp3_Imul, Get_Expr_Right (Stmt), Sz_32); + if Kind = OE_Mul_Ov then + Gen_Check_Overflow (Mode); + end if; when Mode_I64 => Gen_Grp3_Insn (Opc2_Grp3_Imul, Get_Expr_Right (Stmt), Sz_64); + if Kind = OE_Mul_Ov then + Gen_Check_Overflow (Mode); + end if; when Mode_U64 => pragma Assert (Flags.M64); Gen_Mul (Stmt, Sz_64); |