1; RUN: llc < %s -mtriple=thumbv7m -mattr=+execute-only -O0 %s -o - \ 2; RUN: | FileCheck --check-prefix=CHECK-SUBW-ADDW %s 3; RUN: llc < %s -mtriple=thumbv8m.base -mattr=+execute-only -O0 %s -o - \ 4; RUN: | FileCheck --check-prefix=CHECK-MOVW-MOVT-ADD %s 5; RUN: llc < %s -mtriple=thumbv8m.base -mcpu=cortex-m23 -mattr=+execute-only -O0 %s -o - \ 6; RUN: | FileCheck --check-prefix=CHECK-MOVW-MOVT-ADD %s 7; RUN: llc < %s -mtriple=thumbv8m.main -mattr=+execute-only -O0 %s -o - \ 8; RUN: | FileCheck --check-prefix=CHECK-SUBW-ADDW %s 9 10define i8 @test_big_stack_frame() { 11; CHECK-SUBW-ADDW-LABEL: test_big_stack_frame: 12; CHECK-SUBW-ADDW-NOT: ldr {{r[0-9]+}}, .{{.*}} 13; CHECK-SUBW-ADDW: sub.w sp, sp, #65536 14; CHECK-SUBW-ADDW-NOT: ldr {{r[0-9]+}}, .{{.*}} 15; CHECK-SUBW-ADDW: add.w [[REG1:r[0-9]+|lr]], sp, #255 16; CHECK-SUBW-ADDW: add.w {{r[0-9]+}}, [[REG1]], #65280 17; CHECK-SUBW-ADDW-NOT: ldr {{r[0-9]+}}, .{{.*}} 18; CHECK-SUBW-ADDW: add.w [[REGX:r[0-9]+|lr]], sp, #61440 19; CHECK-SUBW-ADDW-NOT: ldr {{r[0-9]+}}, .{{.*}} 20; CHECK-SUBW-ADDW: add.w sp, sp, #65536 21 22; CHECK-MOVW-MOVT-ADD-LABEL: test_big_stack_frame: 23; CHECK-MOVW-MOVT-ADD-NOT: ldr {{r[0-9]+}}, .{{.*}} 24; CHECK-MOVW-MOVT-ADD: movw [[REG1:r[0-9]+]], #0 25; CHECK-MOVW-MOVT-ADD: movt [[REG1]], #65535 26; CHECK-MOVW-MOVT-ADD: add sp, [[REG1]] 27; CHECK-MOVW-MOVT-ADD-NOT: ldr {{r[0-9]+}}, .{{.*}} 28; CHECK-MOVW-MOVT-ADD: movw [[REG2:r[0-9]+]], #65532 29; CHECK-MOVW-MOVT-ADD: add [[REG2]], sp 30; CHECK-MOVW-MOVT-ADD-NOT: ldr {{r[0-9]+}}, .{{.*}} 31; CHECK-MOVW-MOVT-ADD: movw [[REG3:r[0-9]+]], #65532 32; CHECK-MOVW-MOVT-ADD: add [[REG3]], sp 33; CHECK-MOVW-MOVT-ADD-NOT: ldr {{r[0-9]+}}, .{{.*}} 34; CHECK-MOVW-MOVT-ADD: movw [[REG4:r[0-9]+]], #0 35; CHECK-MOVW-MOVT-ADD: movt [[REG4]], #1 36; CHECK-MOVW-MOVT-ADD: add sp, [[REG4]] 37 38entry: 39 %s1 = alloca i8 40 %buffer = alloca [65528 x i8], align 1 41 call void @foo(ptr %s1) 42 %load = load i8, ptr %s1 43 ret i8 %load 44} 45 46declare void @foo(ptr) 47