126 lines
5.7 KiB
Rust
126 lines
5.7 KiB
Rust
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// Checks how `regparm` flag works with different calling conventions:
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// marks function arguments as "inreg" like the C/C++ compilers for the platforms.
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// x86 only.
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//@ compile-flags: --target i686-unknown-linux-gnu -O -C no-prepopulate-passes
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//@ needs-llvm-components: x86
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//@ revisions:regparm0 regparm1 regparm2 regparm3
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//@[regparm0] compile-flags: -Zregparm=0
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//@[regparm1] compile-flags: -Zregparm=1
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//@[regparm2] compile-flags: -Zregparm=2
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//@[regparm3] compile-flags: -Zregparm=3
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#![crate_type = "lib"]
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#![no_core]
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#![feature(no_core, lang_items, repr_simd)]
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#[lang = "sized"]
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trait Sized {}
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#[lang = "copy"]
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trait Copy {}
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pub mod tests {
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// regparm doesn't work for "fastcall" calling conv (only 2 inregs)
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// CHECK: @f1(i32 inreg noundef %_1, i32 inreg noundef %_2, i32 noundef %_3)
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#[no_mangle]
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pub extern "fastcall" fn f1(_: i32, _: i32, _: i32) {}
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// regparm0: @f3(i32 noundef %_1, i32 noundef %_2, i32 noundef %_3)
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// regparm1: @f3(i32 inreg noundef %_1, i32 noundef %_2, i32 noundef %_3)
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// regparm2: @f3(i32 inreg noundef %_1, i32 inreg noundef %_2, i32 noundef %_3)
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// regparm3: @f3(i32 inreg noundef %_1, i32 inreg noundef %_2, i32 inreg noundef %_3)
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#[no_mangle]
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pub extern "C" fn f3(_: i32, _: i32, _: i32) {}
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// regparm0: @f4(i32 noundef %_1, i32 noundef %_2, i32 noundef %_3)
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// regparm1: @f4(i32 inreg noundef %_1, i32 noundef %_2, i32 noundef %_3)
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// regparm2: @f4(i32 inreg noundef %_1, i32 inreg noundef %_2, i32 noundef %_3)
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// regparm3: @f4(i32 inreg noundef %_1, i32 inreg noundef %_2, i32 inreg noundef %_3)
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#[no_mangle]
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pub extern "cdecl" fn f4(_: i32, _: i32, _: i32) {}
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// regparm0: @f5(i32 noundef %_1, i32 noundef %_2, i32 noundef %_3)
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// regparm1: @f5(i32 inreg noundef %_1, i32 noundef %_2, i32 noundef %_3)
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// regparm2: @f5(i32 inreg noundef %_1, i32 inreg noundef %_2, i32 noundef %_3)
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// regparm3: @f5(i32 inreg noundef %_1, i32 inreg noundef %_2, i32 inreg noundef %_3)
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#[no_mangle]
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pub extern "stdcall" fn f5(_: i32, _: i32, _: i32) {}
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// regparm doesn't work for thiscall
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// CHECK: @f6(i32 noundef %_1, i32 noundef %_2, i32 noundef %_3)
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#[no_mangle]
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pub extern "thiscall" fn f6(_: i32, _: i32, _: i32) {}
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struct S1 {
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x1: i32,
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}
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// regparm0: @f7(i32 noundef %_1, i32 noundef %_2, i32 noundef %_3, i32 noundef %_4)
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// regparm1: @f7(i32 inreg noundef %_1, i32 noundef %_2, i32 noundef %_3, i32 noundef %_4)
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// regparm2: @f7(i32 inreg noundef %_1, i32 inreg noundef %_2, i32 noundef %_3, i32 noundef %_4)
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// regparm3: @f7(i32 inreg noundef %_1, i32 inreg noundef %_2, i32 inreg noundef %_3,
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// regparm3-SAME: i32 noundef %_4)
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#[no_mangle]
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pub extern "C" fn f7(_: i32, _: i32, _: S1, _: i32) {}
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#[repr(C)]
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struct S2 {
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x1: i32,
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x2: i32,
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}
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// regparm0: @f8(i32 noundef %_1, i32 noundef %_2, ptr {{.*}} %_3, i32 noundef %_4)
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// regparm1: @f8(i32 inreg noundef %_1, i32 noundef %_2, ptr {{.*}} %_3, i32 noundef %_4)
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// regparm2: @f8(i32 inreg noundef %_1, i32 inreg noundef %_2, ptr {{.*}} %_3, i32 noundef %_4)
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// regparm3: @f8(i32 inreg noundef %_1, i32 inreg noundef %_2, ptr {{.*}} %_3,
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// regparm3-SAME: i32 inreg noundef %_4)
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#[no_mangle]
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pub extern "C" fn f8(_: i32, _: i32, _: S2, _: i32) {}
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// regparm0: @f9(i1 noundef zeroext %_1, i16 noundef signext %_2, i64 noundef %_3,
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// regparm0-SAME: i128 noundef %_4)
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// regparm1: @f9(i1 inreg noundef zeroext %_1, i16 noundef signext %_2, i64 noundef %_3,
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// regparm1-SAME: i128 noundef %_4)
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// regparm2: @f9(i1 inreg noundef zeroext %_1, i16 inreg noundef signext %_2, i64 noundef %_3,
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// regparm2-SAME: i128 noundef %_4)
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// regparm3: @f9(i1 inreg noundef zeroext %_1, i16 inreg noundef signext %_2, i64 noundef %_3,
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// regparm3-SAME: i128 noundef %_4)
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#[no_mangle]
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pub extern "C" fn f9(_: bool, _: i16, _: i64, _: u128) {}
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// regparm0: @f10(float noundef %_1, double noundef %_2, i1 noundef zeroext %_3,
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// regparm0-SAME: i16 noundef signext %_4)
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// regparm1: @f10(float noundef %_1, double noundef %_2, i1 inreg noundef zeroext %_3,
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// regparm1-SAME: i16 noundef signext %_4)
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// regparm2: @f10(float noundef %_1, double noundef %_2, i1 inreg noundef zeroext %_3,
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// regparm2-SAME: i16 inreg noundef signext %_4)
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// regparm3: @f10(float noundef %_1, double noundef %_2, i1 inreg noundef zeroext %_3,
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// regparm3-SAME: i16 inreg noundef signext %_4)
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#[no_mangle]
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pub extern "C" fn f10(_: f32, _: f64, _: bool, _: i16) {}
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#[allow(non_camel_case_types)]
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#[repr(simd)]
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pub struct __m128([f32; 4]);
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// regparm0: @f11(i32 noundef %_1, <4 x float> %_2, i32 noundef %_3, i32 noundef %_4)
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// regparm1: @f11(i32 inreg noundef %_1, <4 x float> %_2, i32 noundef %_3, i32 noundef %_4)
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// regparm2: @f11(i32 inreg noundef %_1, <4 x float> %_2, i32 inreg noundef %_3,
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// regparm2-SAME: i32 noundef %_4)
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// regparm3: @f11(i32 inreg noundef %_1, <4 x float> %_2, i32 inreg noundef %_3,
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// regparm3-SAME: i32 inreg noundef %_4)
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#[no_mangle]
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pub extern "C" fn f11(_: i32, _: __m128, _: i32, _: i32) {}
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#[allow(non_camel_case_types)]
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#[repr(simd)]
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pub struct __m256([f32; 8]);
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// regparm0: @f12(i32 noundef %_1, <8 x float> %_2, i32 noundef %_3, i32 noundef %_4)
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// regparm1: @f12(i32 inreg noundef %_1, <8 x float> %_2, i32 noundef %_3, i32 noundef %_4)
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// regparm2: @f12(i32 inreg noundef %_1, <8 x float> %_2, i32 inreg noundef %_3,
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// regparm2-SAME: i32 noundef %_4)
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// regparm3: @f12(i32 inreg noundef %_1, <8 x float> %_2, i32 inreg noundef %_3,
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// regparm3-SAME: i32 inreg noundef %_4)
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#[no_mangle]
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pub extern "C" fn f12(_: i32, _: __m256, _: i32, _: i32) {}
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}
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