657188ab00
This test was failing on our fork of clang because it was not capturing [[ARG]] in the N32 case. Therefore it used the value from the last function which does not always have to be the same. All other cases were already capturing ARG so this appears to be an oversight. The test now uses -enable-var-scope to prevent such errors in the future. Reviewers: sdardis, atanasyan Patch by: Alexander Richardson Differential Revision: https://reviews.llvm.org/D32425 llvm-svn: 303619
170 lines
6.7 KiB
C
170 lines
6.7 KiB
C
// RUN: %clang_cc1 -triple mips-unknown-linux -o - -emit-llvm %s | FileCheck %s -check-prefixes=ALL,O32 -enable-var-scope
|
|
// RUN: %clang_cc1 -triple mipsel-unknown-linux -o - -emit-llvm %s | FileCheck %s -check-prefixes=ALL,O32 -enable-var-scope
|
|
// RUN: %clang_cc1 -triple mips64-unknown-linux -o - -emit-llvm -target-abi n32 %s | FileCheck %s -check-prefixes=ALL,N32,NEW -enable-var-scope
|
|
// RUN: %clang_cc1 -triple mips64-unknown-linux -o - -emit-llvm -target-abi n32 %s | FileCheck %s -check-prefixes=ALL,N32,NEW -enable-var-scope
|
|
// RUN: %clang_cc1 -triple mips64-unknown-linux -o - -emit-llvm %s | FileCheck %s -check-prefixes=ALL,N64,NEW -enable-var-scope
|
|
// RUN: %clang_cc1 -triple mips64el-unknown-linux -o - -emit-llvm %s | FileCheck %s -check-prefixes=ALL,N64,NEW -enable-var-scope
|
|
|
|
#include <stdarg.h>
|
|
|
|
typedef int v4i32 __attribute__ ((__vector_size__ (16)));
|
|
|
|
int test_i32(char *fmt, ...) {
|
|
va_list va;
|
|
|
|
va_start(va, fmt);
|
|
int v = va_arg(va, int);
|
|
va_end(va);
|
|
|
|
return v;
|
|
}
|
|
|
|
// ALL-LABEL: define i32 @test_i32(i8*{{.*}} %fmt, ...)
|
|
//
|
|
// O32: %va = alloca i8*, align [[$PTRALIGN:4]]
|
|
// N32: %va = alloca i8*, align [[$PTRALIGN:4]]
|
|
// N64: %va = alloca i8*, align [[$PTRALIGN:8]]
|
|
// ALL: [[V:%.*]] = alloca i32, align 4
|
|
// NEW: [[PROMOTION_TEMP:%.*]] = alloca i32, align 4
|
|
//
|
|
// ALL: [[VA:%.+]] = bitcast i8** %va to i8*
|
|
// ALL: call void @llvm.va_start(i8* [[VA]])
|
|
// ALL: [[AP_CUR:%.+]] = load i8*, i8** %va, align [[$PTRALIGN]]
|
|
// O32: [[AP_NEXT:%.+]] = getelementptr inbounds i8, i8* [[AP_CUR]], [[$INTPTR_T:i32]] [[$CHUNKSIZE:4]]
|
|
// NEW: [[AP_NEXT:%.+]] = getelementptr inbounds i8, i8* [[AP_CUR]], [[$INTPTR_T:i32|i64]] [[$CHUNKSIZE:8]]
|
|
//
|
|
// ALL: store i8* [[AP_NEXT]], i8** %va, align [[$PTRALIGN]]
|
|
//
|
|
// O32: [[AP_CAST:%.+]] = bitcast i8* [[AP_CUR]] to [[CHUNK_T:i32]]*
|
|
// O32: [[ARG:%.+]] = load i32, i32* [[AP_CAST]], align [[CHUNKALIGN:4]]
|
|
//
|
|
// N32: [[AP_CAST:%.+]] = bitcast i8* [[AP_CUR]] to [[CHUNK_T:i64]]*
|
|
// N32: [[TMP:%.+]] = load i64, i64* [[AP_CAST]], align [[CHUNKALIGN:8]]
|
|
// N64: [[AP_CAST:%.+]] = bitcast i8* [[AP_CUR]] to [[CHUNK_T:i64]]*
|
|
// N64: [[TMP:%.+]] = load i64, i64* [[AP_CAST]], align [[CHUNKALIGN:8]]
|
|
// NEW: [[TMP2:%.+]] = trunc i64 [[TMP]] to i32
|
|
// NEW: store i32 [[TMP2]], i32* [[PROMOTION_TEMP]], align 4
|
|
// NEW: [[ARG:%.+]] = load i32, i32* [[PROMOTION_TEMP]], align 4
|
|
// ALL: store i32 [[ARG]], i32* [[V]], align 4
|
|
//
|
|
// ALL: [[VA1:%.+]] = bitcast i8** %va to i8*
|
|
// ALL: call void @llvm.va_end(i8* [[VA1]])
|
|
// ALL: }
|
|
|
|
long long test_i64(char *fmt, ...) {
|
|
va_list va;
|
|
|
|
va_start(va, fmt);
|
|
long long v = va_arg(va, long long);
|
|
va_end(va);
|
|
|
|
return v;
|
|
}
|
|
|
|
// ALL-LABEL: define i64 @test_i64(i8*{{.*}} %fmt, ...)
|
|
//
|
|
// ALL: %va = alloca i8*, align [[$PTRALIGN]]
|
|
// ALL: [[VA:%.+]] = bitcast i8** %va to i8*
|
|
// ALL: call void @llvm.va_start(i8* [[VA]])
|
|
// ALL: [[AP_CUR:%.+]] = load i8*, i8** %va, align [[$PTRALIGN]]
|
|
//
|
|
// i64 is 8-byte aligned, while this is within O32's stack alignment there's no
|
|
// guarantee that the offset is still 8-byte aligned after earlier reads.
|
|
// O32: [[TMP1:%.+]] = ptrtoint i8* [[AP_CUR]] to i32
|
|
// O32: [[TMP2:%.+]] = add i32 [[TMP1]], 7
|
|
// O32: [[TMP3:%.+]] = and i32 [[TMP2]], -8
|
|
// O32: [[AP_CUR:%.+]] = inttoptr i32 [[TMP3]] to i8*
|
|
//
|
|
// ALL: [[AP_NEXT:%.+]] = getelementptr inbounds i8, i8* [[AP_CUR]], [[$INTPTR_T]] 8
|
|
// ALL: store i8* [[AP_NEXT]], i8** %va, align [[$PTRALIGN]]
|
|
//
|
|
// ALL: [[AP_CAST:%.*]] = bitcast i8* [[AP_CUR]] to i64*
|
|
// ALL: [[ARG:%.+]] = load i64, i64* [[AP_CAST]], align 8
|
|
//
|
|
// ALL: [[VA1:%.+]] = bitcast i8** %va to i8*
|
|
// ALL: call void @llvm.va_end(i8* [[VA1]])
|
|
// ALL: }
|
|
|
|
char *test_ptr(char *fmt, ...) {
|
|
va_list va;
|
|
|
|
va_start(va, fmt);
|
|
char *v = va_arg(va, char *);
|
|
va_end(va);
|
|
|
|
return v;
|
|
}
|
|
|
|
// ALL-LABEL: define i8* @test_ptr(i8*{{.*}} %fmt, ...)
|
|
//
|
|
// ALL: %va = alloca i8*, align [[$PTRALIGN]]
|
|
// ALL: [[V:%.*]] = alloca i8*, align [[$PTRALIGN]]
|
|
// N32: [[AP_CAST:%.+]] = alloca i8*, align 4
|
|
// ALL: [[VA:%.+]] = bitcast i8** %va to i8*
|
|
// ALL: call void @llvm.va_start(i8* [[VA]])
|
|
// ALL: [[AP_CUR:%.+]] = load i8*, i8** %va, align [[$PTRALIGN]]
|
|
// ALL: [[AP_NEXT:%.+]] = getelementptr inbounds i8, i8* [[AP_CUR]], [[$INTPTR_T]] [[$CHUNKSIZE]]
|
|
// ALL: store i8* [[AP_NEXT]], i8** %va, align [[$PTRALIGN]]
|
|
//
|
|
// When the chunk size matches the pointer size, this is easy.
|
|
// O32: [[AP_CAST:%.+]] = bitcast i8* [[AP_CUR]] to i8**
|
|
// N64: [[AP_CAST:%.+]] = bitcast i8* [[AP_CUR]] to i8**
|
|
// Otherwise we need a promotion temporary.
|
|
// N32: [[TMP1:%.+]] = bitcast i8* [[AP_CUR]] to i64*
|
|
// N32: [[TMP2:%.+]] = load i64, i64* [[TMP1]], align 8
|
|
// N32: [[TMP3:%.+]] = trunc i64 [[TMP2]] to i32
|
|
// N32: [[PTR:%.+]] = inttoptr i32 [[TMP3]] to i8*
|
|
// N32: store i8* [[PTR]], i8** [[AP_CAST]], align 4
|
|
//
|
|
// ALL: [[ARG:%.+]] = load i8*, i8** [[AP_CAST]], align [[$PTRALIGN]]
|
|
// ALL: store i8* [[ARG]], i8** [[V]], align [[$PTRALIGN]]
|
|
//
|
|
// ALL: [[VA1:%.+]] = bitcast i8** %va to i8*
|
|
// ALL: call void @llvm.va_end(i8* [[VA1]])
|
|
// ALL: }
|
|
|
|
int test_v4i32(char *fmt, ...) {
|
|
va_list va;
|
|
|
|
va_start(va, fmt);
|
|
v4i32 v = va_arg(va, v4i32);
|
|
va_end(va);
|
|
|
|
return v[0];
|
|
}
|
|
|
|
// ALL-LABEL: define i32 @test_v4i32(i8*{{.*}} %fmt, ...)
|
|
//
|
|
// ALL: %va = alloca i8*, align [[$PTRALIGN]]
|
|
// ALL: [[V:%.+]] = alloca <4 x i32>, align 16
|
|
// ALL: [[VA1:%.+]] = bitcast i8** %va to i8*
|
|
// ALL: call void @llvm.va_start(i8* [[VA1]])
|
|
// ALL: [[AP_CUR:%.+]] = load i8*, i8** %va, align [[$PTRALIGN]]
|
|
//
|
|
// Vectors are 16-byte aligned, however the O32 ABI has a maximum alignment of
|
|
// 8-bytes since the base of the stack is 8-byte aligned.
|
|
// O32: [[TMP1:%.+]] = ptrtoint i8* [[AP_CUR]] to i32
|
|
// O32: [[TMP2:%.+]] = add i32 [[TMP1]], 7
|
|
// O32: [[TMP3:%.+]] = and i32 [[TMP2]], -8
|
|
// O32: [[AP_CUR:%.+]] = inttoptr i32 [[TMP3]] to i8*
|
|
//
|
|
// NEW: [[TMP1:%.+]] = ptrtoint i8* [[AP_CUR]] to [[$INTPTR_T]]
|
|
// NEW: [[TMP2:%.+]] = add [[$INTPTR_T]] [[TMP1]], 15
|
|
// NEW: [[TMP3:%.+]] = and [[$INTPTR_T]] [[TMP2]], -16
|
|
// NEW: [[AP_CUR:%.+]] = inttoptr [[$INTPTR_T]] [[TMP3]] to i8*
|
|
//
|
|
// ALL: [[AP_NEXT:%.+]] = getelementptr inbounds i8, i8* [[AP_CUR]], [[$INTPTR_T]] 16
|
|
// ALL: store i8* [[AP_NEXT]], i8** %va, align [[$PTRALIGN]]
|
|
//
|
|
// ALL: [[AP_CAST:%.+]] = bitcast i8* [[AP_CUR]] to <4 x i32>*
|
|
// O32: [[ARG:%.+]] = load <4 x i32>, <4 x i32>* [[AP_CAST]], align 8
|
|
// N64: [[ARG:%.+]] = load <4 x i32>, <4 x i32>* [[AP_CAST]], align 16
|
|
// N32: [[ARG:%.+]] = load <4 x i32>, <4 x i32>* [[AP_CAST]], align 16
|
|
// ALL: store <4 x i32> [[ARG]], <4 x i32>* [[V]], align 16
|
|
//
|
|
// ALL: [[VA1:%.+]] = bitcast i8** %va to i8*
|
|
// ALL: call void @llvm.va_end(i8* [[VA1]])
|
|
// ALL: [[VECEXT:%.+]] = extractelement <4 x i32> {{.*}}, i32 0
|
|
// ALL: ret i32 [[VECEXT]]
|
|
// ALL: }
|